M_{12}

L_{2}(11) ≤ M_{11} 144 1a + 11ab + 55a + 66a 5

Character Numbers: [ 1, 2, 3, 8, 11 ]

S_{1} S_{2} S_{3} S_{4} S_{5}
χ_{1} 1 11 11 55 66
χ_{2} 1 −1 11 −5 −6
χ_{3} 1 11 −1 −5 −6
χ_{4} 1 −1 −1 7 −6
χ_{5} 1 −1 −1 −5 6

Ramanujan Graphs: [ 2 ], [ 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 ]