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On this page are computer-accessible forms for the graph C4[ 508, 1 ] = W(254,2).

(I) Following is a form readable by MAGMA:

g:=Graph<508|{ {2, 3}, {506, 507}, {504, 505}, {502, 503}, {500, 501}, {498, 499}, {496, 497}, {494, 495}, {492, 493}, {490, 491}, {488, 489}, {486, 487}, {484, 485}, {482, 483}, {480, 481}, {478, 479}, {476, 477}, {474, 475}, {472, 473}, {470, 471}, {468, 469}, {466, 467}, {464, 465}, {462, 463}, {460, 461}, {458, 459}, {456, 457}, {454, 455}, {452, 453}, {450, 451}, {448, 449}, {446, 447}, {444, 445}, {442, 443}, {440, 441}, {438, 439}, {436, 437}, {434, 435}, {432, 433}, {430, 431}, {428, 429}, {426, 427}, {424, 425}, {422, 423}, {420, 421}, {418, 419}, {416, 417}, {414, 415}, {412, 413}, {410, 411}, {408, 409}, {406, 407}, {404, 405}, {402, 403}, {400, 401}, {398, 399}, {396, 397}, {394, 395}, {392, 393}, {390, 391}, {388, 389}, {386, 387}, {384, 385}, {382, 383}, {380, 381}, {378, 379}, {376, 377}, {374, 375}, {372, 373}, {370, 371}, {368, 369}, {366, 367}, {364, 365}, {362, 363}, {360, 361}, {358, 359}, {356, 357}, {354, 355}, {352, 353}, {350, 351}, {348, 349}, {346, 347}, {344, 345}, {342, 343}, {340, 341}, {338, 339}, {336, 337}, {334, 335}, {332, 333}, {330, 331}, {328, 329}, {326, 327}, {324, 325}, {322, 323}, {320, 321}, {318, 319}, {316, 317}, {314, 315}, {312, 313}, {310, 311}, {308, 309}, {306, 307}, {304, 305}, {302, 303}, {300, 301}, {298, 299}, {296, 297}, {294, 295}, {292, 293}, {290, 291}, {288, 289}, {286, 287}, {284, 285}, {282, 283}, {280, 281}, {278, 279}, {276, 277}, {274, 275}, {272, 273}, {270, 271}, {268, 269}, {266, 267}, {264, 265}, {262, 263}, {260, 261}, {258, 259}, {256, 257}, {254, 255}, {252, 253}, {250, 251}, {142, 143}, {140, 141}, {138, 139}, {136, 137}, {134, 135}, {132, 133}, {130, 131}, {128, 129}, {126, 127}, {124, 125}, {122, 123}, {120, 121}, {118, 119}, {116, 117}, {114, 115}, {112, 113}, {110, 111}, {108, 109}, {106, 107}, {104, 105}, {102, 103}, {100, 101}, {98, 99}, {96, 97}, {94, 95}, {92, 93}, {90, 91}, {88, 89}, {86, 87}, {4, 5}, {6, 7}, {8, 9}, {10, 11}, {12, 13}, {14, 15}, {16, 17}, {18, 19}, {20, 21}, {22, 23}, {24, 25}, {26, 27}, {28, 29}, {30, 31}, {32, 33}, {34, 35}, {36, 37}, {38, 39}, {40, 41}, {42, 43}, {44, 45}, {46, 47}, {48, 49}, {50, 51}, {52, 53}, {54, 55}, {56, 57}, {58, 59}, {60, 61}, {62, 63}, {64, 65}, {66, 67}, {68, 69}, {70, 71}, {72, 73}, {74, 75}, {76, 77}, {78, 79}, {80, 81}, {82, 83}, {84, 85}, {144, 145}, {146, 147}, {148, 149}, {150, 151}, {152, 153}, {154, 155}, {156, 157}, {158, 159}, {160, 161}, {162, 163}, {164, 165}, {166, 167}, {168, 169}, {170, 171}, {172, 173}, {174, 175}, {176, 177}, {178, 179}, {180, 181}, {182, 183}, {184, 185}, {186, 187}, {188, 189}, {190, 191}, {192, 193}, {194, 195}, {196, 197}, {198, 199}, {200, 201}, {202, 203}, {204, 205}, {206, 207}, {208, 209}, {210, 211}, {212, 213}, {214, 215}, {216, 217}, {218, 219}, {220, 221}, {222, 223}, {224, 225}, {226, 227}, {228, 229}, {230, 231}, {232, 233}, {234, 235}, {236, 237}, {238, 239}, {240, 241}, {242, 243}, {244, 245}, {246, 247}, {248, 249}, {1, 2}, {505, 506}, {501, 502}, {497, 498}, {493, 494}, {489, 490}, {485, 486}, {481, 482}, {477, 478}, {473, 474}, {469, 470}, {465, 466}, {461, 462}, {457, 458}, {453, 454}, {449, 450}, {445, 446}, {441, 442}, {437, 438}, {433, 434}, {429, 430}, {425, 426}, {421, 422}, {417, 418}, {413, 414}, {409, 410}, {405, 406}, {401, 402}, {397, 398}, {393, 394}, {389, 390}, {385, 386}, {381, 382}, {377, 378}, {373, 374}, {369, 370}, {365, 366}, {361, 362}, {357, 358}, {353, 354}, {349, 350}, {345, 346}, {341, 342}, {337, 338}, {333, 334}, {329, 330}, {325, 326}, {321, 322}, {317, 318}, {313, 314}, {309, 310}, {305, 306}, {301, 302}, {297, 298}, {293, 294}, {289, 290}, {285, 286}, {281, 282}, {277, 278}, {273, 274}, {269, 270}, {265, 266}, {261, 262}, {257, 258}, {253, 254}, {249, 250}, {141, 142}, {137, 138}, {133, 134}, {129, 130}, {125, 126}, {121, 122}, {117, 118}, {113, 114}, {109, 110}, {105, 106}, {101, 102}, {97, 98}, {93, 94}, {89, 90}, {85, 86}, {5, 6}, {9, 10}, {13, 14}, {17, 18}, {21, 22}, {25, 26}, {29, 30}, {33, 34}, {37, 38}, {41, 42}, {45, 46}, {49, 50}, {53, 54}, {57, 58}, {61, 62}, {65, 66}, {69, 70}, {73, 74}, {77, 78}, {81, 82}, {145, 146}, {149, 150}, {153, 154}, {157, 158}, {161, 162}, {165, 166}, {169, 170}, {173, 174}, {177, 178}, {181, 182}, {185, 186}, {189, 190}, {193, 194}, {197, 198}, {201, 202}, {205, 206}, {209, 210}, {213, 214}, {217, 218}, {221, 222}, {225, 226}, {229, 230}, {233, 234}, {237, 238}, {241, 242}, {245, 246}, {3, 4}, {507, 508}, {499, 500}, {491, 492}, {483, 484}, {475, 476}, {467, 468}, {459, 460}, {451, 452}, {443, 444}, {435, 436}, {427, 428}, {419, 420}, {411, 412}, {403, 404}, {395, 396}, {387, 388}, {379, 380}, {371, 372}, {363, 364}, {355, 356}, {347, 348}, {339, 340}, {331, 332}, {323, 324}, {315, 316}, {307, 308}, {299, 300}, {291, 292}, {283, 284}, {275, 276}, {267, 268}, {259, 260}, {251, 252}, {139, 140}, {131, 132}, {123, 124}, {115, 116}, {107, 108}, {99, 100}, {91, 92}, {11, 12}, {19, 20}, {27, 28}, {35, 36}, {43, 44}, {51, 52}, {59, 60}, {67, 68}, {75, 76}, {83, 84}, {147, 148}, {155, 156}, {163, 164}, {171, 172}, {179, 180}, {187, 188}, {195, 196}, {203, 204}, {211, 212}, {219, 220}, {227, 228}, {235, 236}, {243, 244}, {7, 8}, {503, 504}, {487, 488}, {471, 472}, {455, 456}, {439, 440}, {423, 424}, {407, 408}, {391, 392}, {375, 376}, {359, 360}, {343, 344}, {327, 328}, {311, 312}, {295, 296}, {279, 280}, {263, 264}, {135, 136}, {119, 120}, {103, 104}, {87, 88}, {23, 24}, {39, 40}, {55, 56}, {71, 72}, {151, 152}, {167, 168}, {183, 184}, {199, 200}, {215, 216}, {231, 232}, {247, 248}, {15, 16}, {495, 496}, {463, 464}, {431, 432}, {399, 400}, {367, 368}, {335, 336}, {303, 304}, {271, 272}, {143, 144}, {111, 112}, {47, 48}, {79, 80}, {175, 176}, {207, 208}, {239, 240}, {31, 32}, {479, 480}, {415, 416}, {351, 352}, {287, 288}, {95, 96}, {159, 160}, {223, 224}, {63, 64}, {447, 448}, {319, 320}, {191, 192}, {2, 255}, {1, 254}, {383, 384}, {127, 128}, {1, 256}, {253, 508}, {251, 506}, {249, 504}, {143, 398}, {141, 396}, {139, 394}, {137, 392}, {135, 390}, {133, 388}, {131, 386}, {129, 384}, {127, 382}, {125, 380}, {123, 378}, {121, 376}, {119, 374}, {117, 372}, {115, 370}, {113, 368}, {111, 366}, {109, 364}, {107, 362}, {105, 360}, {103, 358}, {101, 356}, {99, 354}, {97, 352}, {95, 350}, {93, 348}, {91, 346}, {89, 344}, {87, 342}, {85, 340}, {3, 258}, {5, 260}, {7, 262}, {9, 264}, {11, 266}, {13, 268}, {15, 270}, {17, 272}, {19, 274}, {21, 276}, {23, 278}, {25, 280}, {27, 282}, {29, 284}, {31, 286}, {33, 288}, {35, 290}, {37, 292}, {39, 294}, {41, 296}, {43, 298}, {45, 300}, {47, 302}, {49, 304}, {51, 306}, {53, 308}, {55, 310}, {57, 312}, {59, 314}, {61, 316}, {63, 318}, {65, 320}, {67, 322}, {69, 324}, {71, 326}, {73, 328}, {75, 330}, {77, 332}, {79, 334}, {81, 336}, {83, 338}, {145, 400}, {147, 402}, {149, 404}, {151, 406}, {153, 408}, {155, 410}, {157, 412}, {159, 414}, {161, 416}, {163, 418}, {165, 420}, {167, 422}, {169, 424}, {171, 426}, {173, 428}, {175, 430}, {177, 432}, {179, 434}, {181, 436}, {183, 438}, {185, 440}, {187, 442}, {189, 444}, {191, 446}, {193, 448}, {195, 450}, {197, 452}, {199, 454}, {201, 456}, {203, 458}, {205, 460}, {207, 462}, {209, 464}, {211, 466}, {213, 468}, {215, 470}, {217, 472}, {219, 474}, {221, 476}, {223, 478}, {225, 480}, {227, 482}, {229, 484}, {231, 486}, {233, 488}, {235, 490}, {237, 492}, {239, 494}, {241, 496}, {243, 498}, {245, 500}, {247, 502}, {2, 257}, {255, 508}, {251, 504}, {250, 505}, {143, 396}, {142, 397}, {139, 392}, {138, 393}, {135, 388}, {134, 389}, {131, 384}, {130, 385}, {127, 380}, {126, 381}, {123, 376}, {122, 377}, {119, 372}, {118, 373}, {115, 368}, {114, 369}, {111, 364}, {110, 365}, {107, 360}, {106, 361}, {103, 356}, {102, 357}, {99, 352}, {98, 353}, {95, 348}, {94, 349}, {91, 344}, {90, 345}, {87, 340}, {86, 341}, {3, 256}, {6, 261}, {7, 260}, {10, 265}, {11, 264}, {14, 269}, {15, 268}, {18, 273}, {19, 272}, {22, 277}, {23, 276}, {26, 281}, {27, 280}, {30, 285}, {31, 284}, {34, 289}, {35, 288}, {38, 293}, {39, 292}, {42, 297}, {43, 296}, {46, 301}, {47, 300}, {50, 305}, {51, 304}, {54, 309}, {55, 308}, {58, 313}, {59, 312}, {62, 317}, {63, 316}, {66, 321}, {67, 320}, {70, 325}, {71, 324}, {74, 329}, {75, 328}, {78, 333}, {79, 332}, {82, 337}, {83, 336}, {146, 401}, {147, 400}, {150, 405}, {151, 404}, {154, 409}, {155, 408}, {158, 413}, {159, 412}, {162, 417}, {163, 416}, {166, 421}, {167, 420}, {170, 425}, {171, 424}, {174, 429}, {175, 428}, {178, 433}, {179, 432}, {182, 437}, {183, 436}, {186, 441}, {187, 440}, {190, 445}, {191, 444}, {194, 449}, {195, 448}, {198, 453}, {199, 452}, {202, 457}, {203, 456}, {206, 461}, {207, 460}, {210, 465}, {211, 464}, {214, 469}, {215, 468}, {218, 473}, {219, 472}, {222, 477}, {223, 476}, {226, 481}, {227, 480}, {230, 485}, {231, 484}, {234, 489}, {235, 488}, {238, 493}, {239, 492}, {242, 497}, {243, 496}, {246, 501}, {247, 500}, {4, 257}, {254, 507}, {252, 505}, {142, 395}, {140, 393}, {134, 387}, {132, 385}, {126, 379}, {124, 377}, {118, 371}, {116, 369}, {110, 363}, {108, 361}, {102, 355}, {100, 353}, {94, 347}, {92, 345}, {86, 339}, {6, 259}, {12, 265}, {14, 267}, {20, 273}, {22, 275}, {28, 281}, {30, 283}, {36, 289}, {38, 291}, {44, 297}, {46, 299}, {52, 305}, {54, 307}, {60, 313}, {62, 315}, {68, 321}, {70, 323}, {76, 329}, {78, 331}, {84, 337}, {148, 401}, {150, 403}, {156, 409}, {158, 411}, {164, 417}, {166, 419}, {172, 425}, {174, 427}, {180, 433}, {182, 435}, {188, 441}, {190, 443}, {196, 449}, {198, 451}, {204, 457}, {206, 459}, {212, 465}, {214, 467}, {220, 473}, {222, 475}, {228, 481}, {230, 483}, {236, 489}, {238, 491}, {244, 497}, {246, 499}, {4, 259}, {253, 506}, {252, 507}, {141, 394}, {140, 395}, {133, 386}, {132, 387}, {125, 378}, {124, 379}, {117, 370}, {116, 371}, {109, 362}, {108, 363}, {101, 354}, {100, 355}, {93, 346}, {92, 347}, {85, 338}, {84, 339}, {5, 258}, {12, 267}, {13, 266}, {20, 275}, {21, 274}, {28, 283}, {29, 282}, {36, 291}, {37, 290}, {44, 299}, {45, 298}, {52, 307}, {53, 306}, {60, 315}, {61, 314}, {68, 323}, {69, 322}, {76, 331}, {77, 330}, {148, 403}, {149, 402}, {156, 411}, {157, 410}, {164, 419}, {165, 418}, {172, 427}, {173, 426}, {180, 435}, {181, 434}, {188, 443}, {189, 442}, {196, 451}, {197, 450}, {204, 459}, {205, 458}, {212, 467}, {213, 466}, {220, 475}, {221, 474}, {228, 483}, {229, 482}, {236, 491}, {237, 490}, {244, 499}, {245, 498}, {8, 261}, {250, 503}, {138, 391}, {136, 389}, {122, 375}, {120, 373}, {106, 359}, {104, 357}, {90, 343}, {88, 341}, {10, 263}, {24, 277}, {26, 279}, {40, 293}, {42, 295}, {56, 309}, {58, 311}, {72, 325}, {74, 327}, {152, 405}, {154, 407}, {168, 421}, {170, 423}, {184, 437}, {186, 439}, {200, 453}, {202, 455}, {216, 469}, {218, 471}, {232, 485}, {234, 487}, {248, 501}, {8, 263}, {249, 502}, {248, 503}, {137, 390}, {136, 391}, {121, 374}, {120, 375}, {105, 358}, {104, 359}, {89, 342}, {88, 343}, {9, 262}, {24, 279}, {25, 278}, {40, 295}, {41, 294}, {56, 311}, {57, 310}, {72, 327}, {73, 326}, {152, 407}, {153, 406}, {168, 423}, {169, 422}, {184, 439}, {185, 438}, {200, 455}, {201, 454}, {216, 471}, {217, 470}, {232, 487}, {233, 486}, {16, 269}, {114, 367}, {112, 365}, {18, 271}, {48, 301}, {50, 303}, {80, 333}, {82, 335}, {144, 397}, {146, 399}, {176, 429}, {178, 431}, {208, 461}, {210, 463}, {240, 493}, {242, 495}, {16, 271}, {113, 366}, {112, 367}, {17, 270}, {48, 303}, {49, 302}, {80, 335}, {81, 334}, {144, 399}, {145, 398}, {176, 431}, {177, 430}, {208, 463}, {209, 462}, {240, 495}, {241, 494}, {32, 285}, {98, 351}, {96, 349}, {34, 287}, {160, 413}, {162, 415}, {224, 477}, {226, 479}, {32, 287}, {97, 350}, {96, 351}, {33, 286}, {160, 415}, {161, 414}, {224, 479}, {225, 478}, {64, 317}, {66, 319}, {192, 445}, {194, 447}, {64, 319}, {65, 318}, {192, 447}, {193, 446}, {1, 508}, {130, 383}, {128, 381}, {128, 383}, {255, 256}, {129, 382} }>;

(II) A more general form is to represent the graph as the orbit of {2, 3} under the group generated by the following permutations:

a: (193, 447)
b: (65, 319)
c: (2, 256)
d: (253, 507)
e: (158, 412)
f: (94, 348)
g: (222, 476)
h: (30, 284)
m: (61, 315)
n1: (189, 443)
a1: (125, 379)
b1: (246, 500)
c1: (85, 339)
d1: (182, 436)
e1: (213, 467)
f1: (21, 275)
g1: (54, 308)
h1: (149, 403)
m1: (118, 372)
n2: (252, 506)
a2: (155, 409)
b2: (91, 345)
c2: (219, 473)
d2: (27, 281)
e2: (60, 314)
f2: (188, 442)
g2: (124, 378)
h2: (13, 267)
m2: (174, 428)
n3: (77, 331)
a3: (238, 492)
b3: (46, 300)
c3: (205, 459)
d3: (110, 364)
e3: (141, 395)
f3: (194, 448)
g3: (66, 320)
h3: (7, 261)
m3: (104, 358)
n4: (168, 422)
a4: (71, 325)
b4: (40, 294)
c4: (232, 486)
d4: (199, 453)
e4: (135, 389)
f4: (5, 259)
g4: (102, 356)
h4: (166, 420)
m4: (69, 323)
n5: (38, 292)
a5: (230, 484)
b5: (197, 451)
c5: (133, 387)
d5: (249, 503)
e5: (154, 408)
f5: (90, 344)
g5: (185, 439)
h5: (218, 472)
m5: (26, 280)
n6: (57, 311)
a6: (121, 375)
b6: (248, 502)
c6: (151, 405)
d6: (87, 341)
e6: (184, 438)
f6: (215, 469)
g6: (23, 277)
h6: (56, 310)
m6: (120, 374)
n7: (15, 269)
a7: (176, 430)
b7: (79, 333)
c7: (240, 494)
d7: (48, 302)
e7: (207, 461)
f7: (112, 366)
g7: (143, 397)
h7: (6, 260)
m7: (101, 355)
n8: (165, 419)
a8: (70, 324)
b8: (37, 291)
c8: (229, 483)
d8: (198, 452)
e8: (134, 388)
f8: (224, 478)
g8: (96, 350)
h8: (160, 414)
m8: (32, 286)
n9: (63, 317)
a9: (191, 445)
b9: (127, 381)
c9: (4, 258)
d9: (99, 353)
e9: (163, 417)
f9: (68, 322)
g9: (35, 289)
h9: (227, 481)
m9: (196, 450)
n10: (132, 386)
a10: (247, 501)
b10: (152, 406)
c10: (88, 342)
d10: (183, 437)
e10: (216, 470)
f10: (24, 278)
g10: (55, 309)
h10: (119, 373)
m10: (243, 497)
n11: (84, 338)
a11: (179, 433)
b11: (212, 466)
c11: (20, 274)
d11: (51, 305)
e11: (148, 402)
f11: (115, 369)
g11: (226, 480)
h11: (98, 352)
m11: (162, 416)
n12: (34, 288)
a12: (31, 285)
b12: (159, 413)
c12: (95, 349)
d12: (223, 477)
e12: (192, 446)
f12: (64, 318)
g12: (129, 383)
h12: (128, 382)
m12: (3, 257)
n13: (100, 354)
a13: (164, 418)
b13: (36, 290)
c13: (228, 482)
d13: (195, 449)
e13: (67, 321)
f13: (131, 385)
g13: (251, 505)
h13: (156, 410)
m13: (92, 346)
n14: (187, 441)
a14: (220, 474)
b14: (28, 282)
c14: (59, 313)
d14: (123, 377)
e14: (14, 268)
f14: (173, 427)
g14: (78, 332)
h14: (237, 491)
m14: (45, 299)
n15: (206, 460)
a15: (109, 363)
b15: (142, 396)
c15: (10, 264)
d15: (105, 359)
e15: (169, 423)
f15: (74, 328)
g15: (41, 295)
h15: (233, 487)
m15: (202, 456)
n16: (138, 392)
a16: (241, 495)
b16: (82, 336)
c16: (177, 431)
d16: (18, 272)
e16: (210, 464)
f16: (49, 303)
g16: (146, 400)
h16: (113, 367)
m16: (2, 254)(3, 253)(4, 252)(5, 251)(6, 250)(7, 249)(8, 248)(9, 247)(10, 246)(11, 245)(12, 244)(13, 243)(14, 242)(15, 241)(16, 240)(17, 239)(18, 238)(19, 237)(20, 236)(21, 235)(22, 234)(23, 233)(24, 232)(25, 231)(26, 230)(27, 229)(28, 228)(29, 227)(30, 226)(31, 225)(32, 224)(33, 223)(34, 222)(35, 221)(36, 220)(37, 219)(38, 218)(39, 217)(40, 216)(41, 215)(42, 214)(43, 213)(44, 212)(45, 211)(46, 210)(47, 209)(48, 208)(49, 207)(50, 206)(51, 205)(52, 204)(53, 203)(54, 202)(55, 201)(56, 200)(57, 199)(58, 198)(59, 197)(60, 196)(61, 195)(62, 194)(63, 193)(64, 192)(65, 191)(66, 190)(67, 189)(68, 188)(69, 187)(70, 186)(71, 185)(72, 184)(73, 183)(74, 182)(75, 181)(76, 180)(77, 179)(78, 178)(79, 177)(80, 176)(81, 175)(82, 174)(83, 173)(84, 172)(85, 171)(86, 170)(87, 169)(88, 168)(89, 167)(90, 166)(91, 165)(92, 164)(93, 163)(94, 162)(95, 161)(96, 160)(97, 159)(98, 158)(99, 157)(100, 156)(101, 155)(102, 154)(103, 153)(104, 152)(105, 151)(106, 150)(107, 149)(108, 148)(109, 147)(110, 146)(111, 145)(112, 144)(113, 143)(114, 142)(115, 141)(116, 140)(117, 139)(118, 138)(119, 137)(120, 136)(121, 135)(122, 134)(123, 133)(124, 132)(125, 131)(126, 130)(127, 129)(256, 508)(257, 507)(258, 506)(259, 505)(260, 504)(261, 503)(262, 502)(263, 501)(264, 500)(265, 499)(266, 498)(267, 497)(268, 496)(269, 495)(270, 494)(271, 493)(272, 492)(273, 491)(274, 490)(275, 489)(276, 488)(277, 487)(278, 486)(279, 485)(280, 484)(281, 483)(282, 482)(283, 481)(284, 480)(285, 479)(286, 478)(287, 477)(288, 476)(289, 475)(290, 474)(291, 473)(292, 472)(293, 471)(294, 470)(295, 469)(296, 468)(297, 467)(298, 466)(299, 465)(300, 464)(301, 463)(302, 462)(303, 461)(304, 460)(305, 459)(306, 458)(307, 457)(308, 456)(309, 455)(310, 454)(311, 453)(312, 452)(313, 451)(314, 450)(315, 449)(316, 448)(317, 447)(318, 446)(319, 445)(320, 444)(321, 443)(322, 442)(323, 441)(324, 440)(325, 439)(326, 438)(327, 437)(328, 436)(329, 435)(330, 434)(331, 433)(332, 432)(333, 431)(334, 430)(335, 429)(336, 428)(337, 427)(338, 426)(339, 425)(340, 424)(341, 423)(342, 422)(343, 421)(344, 420)(345, 419)(346, 418)(347, 417)(348, 416)(349, 415)(350, 414)(351, 413)(352, 412)(353, 411)(354, 410)(355, 409)(356, 408)(357, 407)(358, 406)(359, 405)(360, 404)(361, 403)(362, 402)(363, 401)(364, 400)(365, 399)(366, 398)(367, 397)(368, 396)(369, 395)(370, 394)(371, 393)(372, 392)(373, 391)(374, 390)(375, 389)(376, 388)(377, 387)(378, 386)(379, 385)(380, 384)(381, 383)
n17: (8, 262)
a17: (103, 357)
b17: (167, 421)
c17: (72, 326)
d17: (39, 293)
e17: (231, 485)
f17: (200, 454)
g17: (136, 390)
h17: (245, 499)
m17: (150, 404)
n18: (86, 340)
a18: (181, 435)
b18: (214, 468)
c18: (22, 276)
d18: (53, 307)
e18: (117, 371)
f18: (130, 384)
g18: (9, 263)
h18: (106, 360)
m18: (170, 424)
n19: (73, 327)
a19: (42, 296)
b19: (234, 488)
c19: (201, 455)
d19: (137, 391)
e19: (250, 504)
f19: (153, 407)
g19: (89, 343)
h19: (186, 440)
m19: (217, 471)
n20: (25, 279)
a20: (58, 312)
b20: (122, 376)
c20: (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254)(255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508)
d20: (16, 270)
e20: (175, 429)
f20: (80, 334)
g20: (239, 493)
h20: (47, 301)
m20: (208, 462)
n21: (111, 365)
a21: (144, 398)
b21: (11, 265)
c21: (172, 426)
d21: (75, 329)
e21: (44, 298)
f21: (236, 490)
g21: (203, 457)
h21: (108, 362)
m21: (139, 393)
n22: (204, 458)
a22: (171, 425)
b22: (76, 330)
c22: (12, 266)
d22: (43, 297)
e22: (235, 489)
f22: (107, 361)
g22: (140, 394)
h22: (211, 465)
m22: (83, 337)
n23: (180, 434)
a23: (19, 273)
b23: (244, 498)
c23: (52, 306)
d23: (147, 401)
e23: (116, 370)
f23: (225, 479)
g23: (97, 351)
h23: (161, 415)
m23: (33, 287)
n24: (29, 283)
a24: (157, 411)
b24: (93, 347)
c24: (221, 475)
d24: (62, 316)
e24: (190, 444)
f24: (254, 508)
g24: (242, 496)
h24: (81, 335)
m24: (178, 432)
n25: (17, 271)
a25: (209, 463)
b25: (50, 304)
c25: (145, 399)
d25: (114, 368)

(III) Last is Groups&Graphs. Copy everything between (not including) the lines of asterisks into a plain text file and save it as "graph.txt". Then launch G&G (Groups&Graphs) and select Read Text from the File menu.

**************

&Graph
C4[ 508, 1 ]
508
-1 254 2 508 256
-2 1 255 3 257
-3 2 256 4 258
-4 3 257 5 259
-5 4 258 6 260
-6 5 259 7 261
-7 6 260 8 262
-8 7 261 9 263
-9 264 8 262 10
-10 11 265 9 263
-11 264 12 266 10
-12 11 265 13 267
-13 12 266 14 268
-14 13 267 15 269
-15 14 268 16 270
-16 15 269 17 271
-17 16 270 18 272
-18 17 271 19 273
-19 18 272 20 274
-20 275 19 273 21
-21 22 276 20 274
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-23 22 276 24 278
-24 23 277 25 279
-25 24 278 26 280
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-27 26 280 28 282
-28 27 281 29 283
-29 28 282 30 284
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-34 33 287 35 289
-35 34 288 36 290
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0

**************