Co_{2}

2^{1+8} : S_{6}(2)  56925 1a + 275a + 2024a + 23000a + 31625b  5

Character Numbers: [ 1, 4, 6, 15, 17 ]

S_{1}  S_{2} S_{3}  S_{4}  S_{5}
χ_{1} 1 1008 1260 14336 40320
χ_{2} 1 −234 225 1088 −1080
χ_{3} 1 108 135 −64 −180
χ_{4} 1  18 −27  80 −72
χ_{5} 1 −18  9 −64  72

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