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Polytope of Type {20,16}

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {20,16}*1280a
if this polytope has a name.
Group : SmallGroup(1280,81666)
Rank : 3
Schlafli Type : {20,16}
Number of vertices, edges, etc : 40, 320, 32
Order of s0s1s2 : 80
Order of s0s1s2s1 : 4
Special Properties :
   Compact Hyperbolic Quotient
   Locally Spherical
   Orientable
Related Polytopes :
   Facet
   Vertex Figure
   Dual
Facet Of :
   None in this Atlas
Vertex Figure Of :
   None in this Atlas
Quotients (Maximal Quotients in Boldface) :
   2-fold quotients : {20,8}*640a, {20,16}*640a, {20,16}*640b
   4-fold quotients : {20,4}*320, {20,8}*320a, {20,8}*320b, {10,16}*320
   5-fold quotients : {4,16}*256a
   8-fold quotients : {20,4}*160, {10,8}*160
   10-fold quotients : {4,8}*128a, {4,16}*128a, {4,16}*128b
   16-fold quotients : {20,2}*80, {10,4}*80
   20-fold quotients : {4,8}*64a, {4,8}*64b, {4,4}*64, {2,16}*64
   32-fold quotients : {10,2}*40
   40-fold quotients : {4,4}*32, {2,8}*32
   64-fold quotients : {5,2}*20
   80-fold quotients : {2,4}*16, {4,2}*16
   160-fold quotients : {2,2}*8
Covers (Minimal Covers in Boldface) :
   None in this atlas.
Permutation Representation (GAP) :
s0 := (  1,161)(  2,165)(  3,164)(  4,163)(  5,162)(  6,166)(  7,170)(  8,169)
(  9,168)( 10,167)( 11,171)( 12,175)( 13,174)( 14,173)( 15,172)( 16,176)
( 17,180)( 18,179)( 19,178)( 20,177)( 21,181)( 22,185)( 23,184)( 24,183)
( 25,182)( 26,186)( 27,190)( 28,189)( 29,188)( 30,187)( 31,191)( 32,195)
( 33,194)( 34,193)( 35,192)( 36,196)( 37,200)( 38,199)( 39,198)( 40,197)
( 41,201)( 42,205)( 43,204)( 44,203)( 45,202)( 46,206)( 47,210)( 48,209)
( 49,208)( 50,207)( 51,211)( 52,215)( 53,214)( 54,213)( 55,212)( 56,216)
( 57,220)( 58,219)( 59,218)( 60,217)( 61,221)( 62,225)( 63,224)( 64,223)
( 65,222)( 66,226)( 67,230)( 68,229)( 69,228)( 70,227)( 71,231)( 72,235)
( 73,234)( 74,233)( 75,232)( 76,236)( 77,240)( 78,239)( 79,238)( 80,237)
( 81,251)( 82,255)( 83,254)( 84,253)( 85,252)( 86,256)( 87,260)( 88,259)
( 89,258)( 90,257)( 91,241)( 92,245)( 93,244)( 94,243)( 95,242)( 96,246)
( 97,250)( 98,249)( 99,248)(100,247)(101,271)(102,275)(103,274)(104,273)
(105,272)(106,276)(107,280)(108,279)(109,278)(110,277)(111,261)(112,265)
(113,264)(114,263)(115,262)(116,266)(117,270)(118,269)(119,268)(120,267)
(121,291)(122,295)(123,294)(124,293)(125,292)(126,296)(127,300)(128,299)
(129,298)(130,297)(131,281)(132,285)(133,284)(134,283)(135,282)(136,286)
(137,290)(138,289)(139,288)(140,287)(141,311)(142,315)(143,314)(144,313)
(145,312)(146,316)(147,320)(148,319)(149,318)(150,317)(151,301)(152,305)
(153,304)(154,303)(155,302)(156,306)(157,310)(158,309)(159,308)(160,307)
(321,481)(322,485)(323,484)(324,483)(325,482)(326,486)(327,490)(328,489)
(329,488)(330,487)(331,491)(332,495)(333,494)(334,493)(335,492)(336,496)
(337,500)(338,499)(339,498)(340,497)(341,501)(342,505)(343,504)(344,503)
(345,502)(346,506)(347,510)(348,509)(349,508)(350,507)(351,511)(352,515)
(353,514)(354,513)(355,512)(356,516)(357,520)(358,519)(359,518)(360,517)
(361,521)(362,525)(363,524)(364,523)(365,522)(366,526)(367,530)(368,529)
(369,528)(370,527)(371,531)(372,535)(373,534)(374,533)(375,532)(376,536)
(377,540)(378,539)(379,538)(380,537)(381,541)(382,545)(383,544)(384,543)
(385,542)(386,546)(387,550)(388,549)(389,548)(390,547)(391,551)(392,555)
(393,554)(394,553)(395,552)(396,556)(397,560)(398,559)(399,558)(400,557)
(401,571)(402,575)(403,574)(404,573)(405,572)(406,576)(407,580)(408,579)
(409,578)(410,577)(411,561)(412,565)(413,564)(414,563)(415,562)(416,566)
(417,570)(418,569)(419,568)(420,567)(421,591)(422,595)(423,594)(424,593)
(425,592)(426,596)(427,600)(428,599)(429,598)(430,597)(431,581)(432,585)
(433,584)(434,583)(435,582)(436,586)(437,590)(438,589)(439,588)(440,587)
(441,611)(442,615)(443,614)(444,613)(445,612)(446,616)(447,620)(448,619)
(449,618)(450,617)(451,601)(452,605)(453,604)(454,603)(455,602)(456,606)
(457,610)(458,609)(459,608)(460,607)(461,631)(462,635)(463,634)(464,633)
(465,632)(466,636)(467,640)(468,639)(469,638)(470,637)(471,621)(472,625)
(473,624)(474,623)(475,622)(476,626)(477,630)(478,629)(479,628)(480,627);;
s1 := (  1,  3)(  4,  5)(  6,  8)(  9, 10)( 11, 13)( 14, 15)( 16, 18)( 19, 20)
( 21, 28)( 22, 27)( 23, 26)( 24, 30)( 25, 29)( 31, 38)( 32, 37)( 33, 36)
( 34, 40)( 35, 39)( 41, 43)( 44, 45)( 46, 48)( 49, 50)( 51, 53)( 54, 55)
( 56, 58)( 59, 60)( 61, 68)( 62, 67)( 63, 66)( 64, 70)( 65, 69)( 71, 78)
( 72, 77)( 73, 76)( 74, 80)( 75, 79)( 81,103)( 82,102)( 83,101)( 84,105)
( 85,104)( 86,108)( 87,107)( 88,106)( 89,110)( 90,109)( 91,113)( 92,112)
( 93,111)( 94,115)( 95,114)( 96,118)( 97,117)( 98,116)( 99,120)(100,119)
(121,143)(122,142)(123,141)(124,145)(125,144)(126,148)(127,147)(128,146)
(129,150)(130,149)(131,153)(132,152)(133,151)(134,155)(135,154)(136,158)
(137,157)(138,156)(139,160)(140,159)(161,203)(162,202)(163,201)(164,205)
(165,204)(166,208)(167,207)(168,206)(169,210)(170,209)(171,213)(172,212)
(173,211)(174,215)(175,214)(176,218)(177,217)(178,216)(179,220)(180,219)
(181,228)(182,227)(183,226)(184,230)(185,229)(186,223)(187,222)(188,221)
(189,225)(190,224)(191,238)(192,237)(193,236)(194,240)(195,239)(196,233)
(197,232)(198,231)(199,235)(200,234)(241,303)(242,302)(243,301)(244,305)
(245,304)(246,308)(247,307)(248,306)(249,310)(250,309)(251,313)(252,312)
(253,311)(254,315)(255,314)(256,318)(257,317)(258,316)(259,320)(260,319)
(261,283)(262,282)(263,281)(264,285)(265,284)(266,288)(267,287)(268,286)
(269,290)(270,289)(271,293)(272,292)(273,291)(274,295)(275,294)(276,298)
(277,297)(278,296)(279,300)(280,299)(321,403)(322,402)(323,401)(324,405)
(325,404)(326,408)(327,407)(328,406)(329,410)(330,409)(331,413)(332,412)
(333,411)(334,415)(335,414)(336,418)(337,417)(338,416)(339,420)(340,419)
(341,428)(342,427)(343,426)(344,430)(345,429)(346,423)(347,422)(348,421)
(349,425)(350,424)(351,438)(352,437)(353,436)(354,440)(355,439)(356,433)
(357,432)(358,431)(359,435)(360,434)(361,443)(362,442)(363,441)(364,445)
(365,444)(366,448)(367,447)(368,446)(369,450)(370,449)(371,453)(372,452)
(373,451)(374,455)(375,454)(376,458)(377,457)(378,456)(379,460)(380,459)
(381,468)(382,467)(383,466)(384,470)(385,469)(386,463)(387,462)(388,461)
(389,465)(390,464)(391,478)(392,477)(393,476)(394,480)(395,479)(396,473)
(397,472)(398,471)(399,475)(400,474)(481,613)(482,612)(483,611)(484,615)
(485,614)(486,618)(487,617)(488,616)(489,620)(490,619)(491,603)(492,602)
(493,601)(494,605)(495,604)(496,608)(497,607)(498,606)(499,610)(500,609)
(501,638)(502,637)(503,636)(504,640)(505,639)(506,633)(507,632)(508,631)
(509,635)(510,634)(511,628)(512,627)(513,626)(514,630)(515,629)(516,623)
(517,622)(518,621)(519,625)(520,624)(521,573)(522,572)(523,571)(524,575)
(525,574)(526,578)(527,577)(528,576)(529,580)(530,579)(531,563)(532,562)
(533,561)(534,565)(535,564)(536,568)(537,567)(538,566)(539,570)(540,569)
(541,598)(542,597)(543,596)(544,600)(545,599)(546,593)(547,592)(548,591)
(549,595)(550,594)(551,588)(552,587)(553,586)(554,590)(555,589)(556,583)
(557,582)(558,581)(559,585)(560,584);;
s2 := (  1,321)(  2,322)(  3,323)(  4,324)(  5,325)(  6,326)(  7,327)(  8,328)
(  9,329)( 10,330)( 11,331)( 12,332)( 13,333)( 14,334)( 15,335)( 16,336)
( 17,337)( 18,338)( 19,339)( 20,340)( 21,346)( 22,347)( 23,348)( 24,349)
( 25,350)( 26,341)( 27,342)( 28,343)( 29,344)( 30,345)( 31,356)( 32,357)
( 33,358)( 34,359)( 35,360)( 36,351)( 37,352)( 38,353)( 39,354)( 40,355)
( 41,371)( 42,372)( 43,373)( 44,374)( 45,375)( 46,376)( 47,377)( 48,378)
( 49,379)( 50,380)( 51,361)( 52,362)( 53,363)( 54,364)( 55,365)( 56,366)
( 57,367)( 58,368)( 59,369)( 60,370)( 61,396)( 62,397)( 63,398)( 64,399)
( 65,400)( 66,391)( 67,392)( 68,393)( 69,394)( 70,395)( 71,386)( 72,387)
( 73,388)( 74,389)( 75,390)( 76,381)( 77,382)( 78,383)( 79,384)( 80,385)
( 81,421)( 82,422)( 83,423)( 84,424)( 85,425)( 86,426)( 87,427)( 88,428)
( 89,429)( 90,430)( 91,431)( 92,432)( 93,433)( 94,434)( 95,435)( 96,436)
( 97,437)( 98,438)( 99,439)(100,440)(101,401)(102,402)(103,403)(104,404)
(105,405)(106,406)(107,407)(108,408)(109,409)(110,410)(111,411)(112,412)
(113,413)(114,414)(115,415)(116,416)(117,417)(118,418)(119,419)(120,420)
(121,471)(122,472)(123,473)(124,474)(125,475)(126,476)(127,477)(128,478)
(129,479)(130,480)(131,461)(132,462)(133,463)(134,464)(135,465)(136,466)
(137,467)(138,468)(139,469)(140,470)(141,451)(142,452)(143,453)(144,454)
(145,455)(146,456)(147,457)(148,458)(149,459)(150,460)(151,441)(152,442)
(153,443)(154,444)(155,445)(156,446)(157,447)(158,448)(159,449)(160,450)
(161,481)(162,482)(163,483)(164,484)(165,485)(166,486)(167,487)(168,488)
(169,489)(170,490)(171,491)(172,492)(173,493)(174,494)(175,495)(176,496)
(177,497)(178,498)(179,499)(180,500)(181,506)(182,507)(183,508)(184,509)
(185,510)(186,501)(187,502)(188,503)(189,504)(190,505)(191,516)(192,517)
(193,518)(194,519)(195,520)(196,511)(197,512)(198,513)(199,514)(200,515)
(201,531)(202,532)(203,533)(204,534)(205,535)(206,536)(207,537)(208,538)
(209,539)(210,540)(211,521)(212,522)(213,523)(214,524)(215,525)(216,526)
(217,527)(218,528)(219,529)(220,530)(221,556)(222,557)(223,558)(224,559)
(225,560)(226,551)(227,552)(228,553)(229,554)(230,555)(231,546)(232,547)
(233,548)(234,549)(235,550)(236,541)(237,542)(238,543)(239,544)(240,545)
(241,581)(242,582)(243,583)(244,584)(245,585)(246,586)(247,587)(248,588)
(249,589)(250,590)(251,591)(252,592)(253,593)(254,594)(255,595)(256,596)
(257,597)(258,598)(259,599)(260,600)(261,561)(262,562)(263,563)(264,564)
(265,565)(266,566)(267,567)(268,568)(269,569)(270,570)(271,571)(272,572)
(273,573)(274,574)(275,575)(276,576)(277,577)(278,578)(279,579)(280,580)
(281,631)(282,632)(283,633)(284,634)(285,635)(286,636)(287,637)(288,638)
(289,639)(290,640)(291,621)(292,622)(293,623)(294,624)(295,625)(296,626)
(297,627)(298,628)(299,629)(300,630)(301,611)(302,612)(303,613)(304,614)
(305,615)(306,616)(307,617)(308,618)(309,619)(310,620)(311,601)(312,602)
(313,603)(314,604)(315,605)(316,606)(317,607)(318,608)(319,609)(320,610);;
poly := Group([s0,s1,s2]);;
 
Finitely Presented Group Representation (GAP) :
F := FreeGroup("s0","s1","s2");;
s0 := F.1;;  s1 := F.2;;  s2 := F.3;;  
rels := [ s0*s0, s1*s1, s2*s2, s0*s2*s0*s2, s2*s0*s1*s2*s1*s0*s1*s2*s0*s1*s2*s1*s0*s1, 
s0*s1*s2*s1*s0*s1*s0*s1*s0*s1*s2*s1*s0*s1*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 ];;
poly := F / rels;;
 
Permutation Representation (Magma) :
s0 := Sym(640)!(  1,161)(  2,165)(  3,164)(  4,163)(  5,162)(  6,166)(  7,170)
(  8,169)(  9,168)( 10,167)( 11,171)( 12,175)( 13,174)( 14,173)( 15,172)
( 16,176)( 17,180)( 18,179)( 19,178)( 20,177)( 21,181)( 22,185)( 23,184)
( 24,183)( 25,182)( 26,186)( 27,190)( 28,189)( 29,188)( 30,187)( 31,191)
( 32,195)( 33,194)( 34,193)( 35,192)( 36,196)( 37,200)( 38,199)( 39,198)
( 40,197)( 41,201)( 42,205)( 43,204)( 44,203)( 45,202)( 46,206)( 47,210)
( 48,209)( 49,208)( 50,207)( 51,211)( 52,215)( 53,214)( 54,213)( 55,212)
( 56,216)( 57,220)( 58,219)( 59,218)( 60,217)( 61,221)( 62,225)( 63,224)
( 64,223)( 65,222)( 66,226)( 67,230)( 68,229)( 69,228)( 70,227)( 71,231)
( 72,235)( 73,234)( 74,233)( 75,232)( 76,236)( 77,240)( 78,239)( 79,238)
( 80,237)( 81,251)( 82,255)( 83,254)( 84,253)( 85,252)( 86,256)( 87,260)
( 88,259)( 89,258)( 90,257)( 91,241)( 92,245)( 93,244)( 94,243)( 95,242)
( 96,246)( 97,250)( 98,249)( 99,248)(100,247)(101,271)(102,275)(103,274)
(104,273)(105,272)(106,276)(107,280)(108,279)(109,278)(110,277)(111,261)
(112,265)(113,264)(114,263)(115,262)(116,266)(117,270)(118,269)(119,268)
(120,267)(121,291)(122,295)(123,294)(124,293)(125,292)(126,296)(127,300)
(128,299)(129,298)(130,297)(131,281)(132,285)(133,284)(134,283)(135,282)
(136,286)(137,290)(138,289)(139,288)(140,287)(141,311)(142,315)(143,314)
(144,313)(145,312)(146,316)(147,320)(148,319)(149,318)(150,317)(151,301)
(152,305)(153,304)(154,303)(155,302)(156,306)(157,310)(158,309)(159,308)
(160,307)(321,481)(322,485)(323,484)(324,483)(325,482)(326,486)(327,490)
(328,489)(329,488)(330,487)(331,491)(332,495)(333,494)(334,493)(335,492)
(336,496)(337,500)(338,499)(339,498)(340,497)(341,501)(342,505)(343,504)
(344,503)(345,502)(346,506)(347,510)(348,509)(349,508)(350,507)(351,511)
(352,515)(353,514)(354,513)(355,512)(356,516)(357,520)(358,519)(359,518)
(360,517)(361,521)(362,525)(363,524)(364,523)(365,522)(366,526)(367,530)
(368,529)(369,528)(370,527)(371,531)(372,535)(373,534)(374,533)(375,532)
(376,536)(377,540)(378,539)(379,538)(380,537)(381,541)(382,545)(383,544)
(384,543)(385,542)(386,546)(387,550)(388,549)(389,548)(390,547)(391,551)
(392,555)(393,554)(394,553)(395,552)(396,556)(397,560)(398,559)(399,558)
(400,557)(401,571)(402,575)(403,574)(404,573)(405,572)(406,576)(407,580)
(408,579)(409,578)(410,577)(411,561)(412,565)(413,564)(414,563)(415,562)
(416,566)(417,570)(418,569)(419,568)(420,567)(421,591)(422,595)(423,594)
(424,593)(425,592)(426,596)(427,600)(428,599)(429,598)(430,597)(431,581)
(432,585)(433,584)(434,583)(435,582)(436,586)(437,590)(438,589)(439,588)
(440,587)(441,611)(442,615)(443,614)(444,613)(445,612)(446,616)(447,620)
(448,619)(449,618)(450,617)(451,601)(452,605)(453,604)(454,603)(455,602)
(456,606)(457,610)(458,609)(459,608)(460,607)(461,631)(462,635)(463,634)
(464,633)(465,632)(466,636)(467,640)(468,639)(469,638)(470,637)(471,621)
(472,625)(473,624)(474,623)(475,622)(476,626)(477,630)(478,629)(479,628)
(480,627);
s1 := Sym(640)!(  1,  3)(  4,  5)(  6,  8)(  9, 10)( 11, 13)( 14, 15)( 16, 18)
( 19, 20)( 21, 28)( 22, 27)( 23, 26)( 24, 30)( 25, 29)( 31, 38)( 32, 37)
( 33, 36)( 34, 40)( 35, 39)( 41, 43)( 44, 45)( 46, 48)( 49, 50)( 51, 53)
( 54, 55)( 56, 58)( 59, 60)( 61, 68)( 62, 67)( 63, 66)( 64, 70)( 65, 69)
( 71, 78)( 72, 77)( 73, 76)( 74, 80)( 75, 79)( 81,103)( 82,102)( 83,101)
( 84,105)( 85,104)( 86,108)( 87,107)( 88,106)( 89,110)( 90,109)( 91,113)
( 92,112)( 93,111)( 94,115)( 95,114)( 96,118)( 97,117)( 98,116)( 99,120)
(100,119)(121,143)(122,142)(123,141)(124,145)(125,144)(126,148)(127,147)
(128,146)(129,150)(130,149)(131,153)(132,152)(133,151)(134,155)(135,154)
(136,158)(137,157)(138,156)(139,160)(140,159)(161,203)(162,202)(163,201)
(164,205)(165,204)(166,208)(167,207)(168,206)(169,210)(170,209)(171,213)
(172,212)(173,211)(174,215)(175,214)(176,218)(177,217)(178,216)(179,220)
(180,219)(181,228)(182,227)(183,226)(184,230)(185,229)(186,223)(187,222)
(188,221)(189,225)(190,224)(191,238)(192,237)(193,236)(194,240)(195,239)
(196,233)(197,232)(198,231)(199,235)(200,234)(241,303)(242,302)(243,301)
(244,305)(245,304)(246,308)(247,307)(248,306)(249,310)(250,309)(251,313)
(252,312)(253,311)(254,315)(255,314)(256,318)(257,317)(258,316)(259,320)
(260,319)(261,283)(262,282)(263,281)(264,285)(265,284)(266,288)(267,287)
(268,286)(269,290)(270,289)(271,293)(272,292)(273,291)(274,295)(275,294)
(276,298)(277,297)(278,296)(279,300)(280,299)(321,403)(322,402)(323,401)
(324,405)(325,404)(326,408)(327,407)(328,406)(329,410)(330,409)(331,413)
(332,412)(333,411)(334,415)(335,414)(336,418)(337,417)(338,416)(339,420)
(340,419)(341,428)(342,427)(343,426)(344,430)(345,429)(346,423)(347,422)
(348,421)(349,425)(350,424)(351,438)(352,437)(353,436)(354,440)(355,439)
(356,433)(357,432)(358,431)(359,435)(360,434)(361,443)(362,442)(363,441)
(364,445)(365,444)(366,448)(367,447)(368,446)(369,450)(370,449)(371,453)
(372,452)(373,451)(374,455)(375,454)(376,458)(377,457)(378,456)(379,460)
(380,459)(381,468)(382,467)(383,466)(384,470)(385,469)(386,463)(387,462)
(388,461)(389,465)(390,464)(391,478)(392,477)(393,476)(394,480)(395,479)
(396,473)(397,472)(398,471)(399,475)(400,474)(481,613)(482,612)(483,611)
(484,615)(485,614)(486,618)(487,617)(488,616)(489,620)(490,619)(491,603)
(492,602)(493,601)(494,605)(495,604)(496,608)(497,607)(498,606)(499,610)
(500,609)(501,638)(502,637)(503,636)(504,640)(505,639)(506,633)(507,632)
(508,631)(509,635)(510,634)(511,628)(512,627)(513,626)(514,630)(515,629)
(516,623)(517,622)(518,621)(519,625)(520,624)(521,573)(522,572)(523,571)
(524,575)(525,574)(526,578)(527,577)(528,576)(529,580)(530,579)(531,563)
(532,562)(533,561)(534,565)(535,564)(536,568)(537,567)(538,566)(539,570)
(540,569)(541,598)(542,597)(543,596)(544,600)(545,599)(546,593)(547,592)
(548,591)(549,595)(550,594)(551,588)(552,587)(553,586)(554,590)(555,589)
(556,583)(557,582)(558,581)(559,585)(560,584);
s2 := Sym(640)!(  1,321)(  2,322)(  3,323)(  4,324)(  5,325)(  6,326)(  7,327)
(  8,328)(  9,329)( 10,330)( 11,331)( 12,332)( 13,333)( 14,334)( 15,335)
( 16,336)( 17,337)( 18,338)( 19,339)( 20,340)( 21,346)( 22,347)( 23,348)
( 24,349)( 25,350)( 26,341)( 27,342)( 28,343)( 29,344)( 30,345)( 31,356)
( 32,357)( 33,358)( 34,359)( 35,360)( 36,351)( 37,352)( 38,353)( 39,354)
( 40,355)( 41,371)( 42,372)( 43,373)( 44,374)( 45,375)( 46,376)( 47,377)
( 48,378)( 49,379)( 50,380)( 51,361)( 52,362)( 53,363)( 54,364)( 55,365)
( 56,366)( 57,367)( 58,368)( 59,369)( 60,370)( 61,396)( 62,397)( 63,398)
( 64,399)( 65,400)( 66,391)( 67,392)( 68,393)( 69,394)( 70,395)( 71,386)
( 72,387)( 73,388)( 74,389)( 75,390)( 76,381)( 77,382)( 78,383)( 79,384)
( 80,385)( 81,421)( 82,422)( 83,423)( 84,424)( 85,425)( 86,426)( 87,427)
( 88,428)( 89,429)( 90,430)( 91,431)( 92,432)( 93,433)( 94,434)( 95,435)
( 96,436)( 97,437)( 98,438)( 99,439)(100,440)(101,401)(102,402)(103,403)
(104,404)(105,405)(106,406)(107,407)(108,408)(109,409)(110,410)(111,411)
(112,412)(113,413)(114,414)(115,415)(116,416)(117,417)(118,418)(119,419)
(120,420)(121,471)(122,472)(123,473)(124,474)(125,475)(126,476)(127,477)
(128,478)(129,479)(130,480)(131,461)(132,462)(133,463)(134,464)(135,465)
(136,466)(137,467)(138,468)(139,469)(140,470)(141,451)(142,452)(143,453)
(144,454)(145,455)(146,456)(147,457)(148,458)(149,459)(150,460)(151,441)
(152,442)(153,443)(154,444)(155,445)(156,446)(157,447)(158,448)(159,449)
(160,450)(161,481)(162,482)(163,483)(164,484)(165,485)(166,486)(167,487)
(168,488)(169,489)(170,490)(171,491)(172,492)(173,493)(174,494)(175,495)
(176,496)(177,497)(178,498)(179,499)(180,500)(181,506)(182,507)(183,508)
(184,509)(185,510)(186,501)(187,502)(188,503)(189,504)(190,505)(191,516)
(192,517)(193,518)(194,519)(195,520)(196,511)(197,512)(198,513)(199,514)
(200,515)(201,531)(202,532)(203,533)(204,534)(205,535)(206,536)(207,537)
(208,538)(209,539)(210,540)(211,521)(212,522)(213,523)(214,524)(215,525)
(216,526)(217,527)(218,528)(219,529)(220,530)(221,556)(222,557)(223,558)
(224,559)(225,560)(226,551)(227,552)(228,553)(229,554)(230,555)(231,546)
(232,547)(233,548)(234,549)(235,550)(236,541)(237,542)(238,543)(239,544)
(240,545)(241,581)(242,582)(243,583)(244,584)(245,585)(246,586)(247,587)
(248,588)(249,589)(250,590)(251,591)(252,592)(253,593)(254,594)(255,595)
(256,596)(257,597)(258,598)(259,599)(260,600)(261,561)(262,562)(263,563)
(264,564)(265,565)(266,566)(267,567)(268,568)(269,569)(270,570)(271,571)
(272,572)(273,573)(274,574)(275,575)(276,576)(277,577)(278,578)(279,579)
(280,580)(281,631)(282,632)(283,633)(284,634)(285,635)(286,636)(287,637)
(288,638)(289,639)(290,640)(291,621)(292,622)(293,623)(294,624)(295,625)
(296,626)(297,627)(298,628)(299,629)(300,630)(301,611)(302,612)(303,613)
(304,614)(305,615)(306,616)(307,617)(308,618)(309,619)(310,620)(311,601)
(312,602)(313,603)(314,604)(315,605)(316,606)(317,607)(318,608)(319,609)
(320,610);
poly := sub<Sym(640)|s0,s1,s2>;
 
Finitely Presented Group Representation (Magma) :
poly<s0,s1,s2> := Group< s0,s1,s2 | s0*s0, s1*s1, s2*s2, 
s0*s2*s0*s2, s2*s0*s1*s2*s1*s0*s1*s2*s0*s1*s2*s1*s0*s1, 
s0*s1*s2*s1*s0*s1*s0*s1*s0*s1*s2*s1*s0*s1*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 >; 
 
References : None.
to this polytope