M_{12}

A_{6}.2^{2} 66 1a + 11a + 54a 3

Character Numbers: [ 1, 2, 7 ]

A_{6}.2^{2} 66 1a + 11b + 54a 3

Character Numbers: [ 1, 3, 7 ]

S_{1} S_{2} S_{3}
χ_{1} 1 20 45
χ_{2} 1 8 −9
χ_{3} 1 −2 1

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