Distance-2 graph of line graph of Hoffman-Singleton graph

Number of vertices:$175$
Diameter:$2$
Intersection array:$\{72,51;1,36\}$
Spectrum:$72^1 2^{153} (-18)^{21}$
Automorphism group:$\mathrm{P} \Sigma \mathrm{U}(3,5^2)$
Distance-transitive:No
Primitive




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Last updated: 21 February 2024