Line graph of Hoffman-Singleton

Number of vertices:$175$
Diameter:$3$
Intersection array:$\{12,6,5;1,1,4\}$
Spectrum:$12^1 7^{28} 2^{21} (-2)^{125}$
Automorphism group:$P \Sigma U(3,5^2)$
Distance-transitive:Yes
Primitive




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Last updated: 4 February 2017