Doubled $\mathrm{M}_{22}$ graph

Number of vertices:$154$
Diameter:$5$
Intersection array:$\{16,15,12,4,1;1,4,12,15,16\}$
Spectrum:$16^1 6^{21} 2^{55} (-2)^{55} (-6)^{21} (-16)^1$
Automorphism group:$(\mathrm{M}_{22}:2) \times 2$
Distance-transitive:Yes
Bipartite, Antipodal




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Last updated: 19 January 2017