M_{12}.2

L_{2}(11).2  144 1a^{+} + 16ab + 45a^{+} + 66a^{+}  4

Character Numbers: [ 1, 4, 5, 12 ]

S_{1} S_{2} S_{3} S_{4}
χ_{1} 1 22 55 66
χ_{2} 1 −5 10 −6
χ_{3} 1 6 −1 −6
χ_{4} 1 −2 −5 6

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