M_{23}

L_{3}(4).2_{2} 253 1a + 22a + 230a 3

Character Numbers: [ 1, 2, 5 ]

S_{1} S_{2} S_{3}
χ_{1} 1 42 210
χ_{2} 1 19 −20
χ_{3} 1 −2  1

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