Co_{2}

HS.2 476928 {1a + 275a + 2024a + 12650a + 31625b + \atop 184437a + 245916a} 7

Character Numbers: [ 1, 4, 6, 14, 17, 27, 33 ]

S_{1} S_{2} S_{3}  S_{4}  S_{5}  S_{6}  S_{7}
χ_{1} 1 3850 4125 44352 61600 132000 231000
χ_{2} 1 −14 1365 −2016 7504 −6000 −840
χ_{3} 1 490 285 −2016 −560 2640 −840
χ_{4} 1 −86 285  576 −416  480 −840
χ_{5} 1 178 21  288 −176 −624  312
χ_{6} 1 10 −35  64 160  160 −360
χ_{7} 1 −30  5 −96 −80  −80  280

Ramanujan Graphs: [ 2, 3, 4, 5, 6 ], [ 2, 3, 4, 5, 6, 7 ], [ 2, 3, 7 ], [ 2, 4, 5, 6 ], [ 2, 4, 5, 6, 7 ], [ 2, 7 ], [ 3, 4, 5, 6 ], [ 3, 4, 5, 6, 7 ], [ 3, 7 ], [ 4, 5, 6 ], [ 4, 5, 6, 7 ], [ 5, 6, 7 ], [ 7 ]