M_{12}

L_{2}(11) 144 1a + 16ab + 45a + 66a 5

Character Numbers: [ 1, 4, 5, 6, 11 ]

S_{1}  S_{2}  S_{3} S_{4} S_{5}
χ_{1} 1  11  11 55 66
χ_{2} 1 −4 − 3b11 −1 + 3b11 10 −6
χ_{3} 1 −1 + 3b11 −4 − 3b11 10 −6
χ_{4} 1  3  3 −1 −6
χ_{5} 1  −1  −1 −5 6

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