HS

U_{3}(5) ≤ U_{3}(5).2 352 1a + 22a + 154b + 175a 4

U_{3}(5) ≤ U_{3}(5).2 352 1a + 22a + 154b + 175a 4

Character Numbers: [ 1, 2, 5, 7 ]

S_{1} S_{2} S_{3} S_{4}
χ_{1} 1 1 175 175
χ_{2} 1 −1 35 −35
χ_{3} 1 −1 −5  5
χ_{4} 1 1 −1 −1

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