F i_{23}

\begin{matrix}O_{8}^{+}(3).3 \\ ≤ O_{8}^{+}(3).3.2 \end{matrix} 275264 {1a + 25806a + 30888a + 106743a + \atop 111826a} 5

Character Numbers: [ 1, 5, 6, 8, 9 ]

S_{1} S_{2}  S_{3}  S_{4}  S_{5}
χ_{1} 1 1 28431 28431 218400
χ_{2} 1 −1 −351 351  0
χ_{3} 1 1 279 279 −560
χ_{4} 1 1 −81 −81  160
χ_{5} 1 −1  81 −81  0

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