Distance-3 graph of Heawood graph
$\cong$ Incidence graph of biplane on 7 points

Number of vertices:$14$
Diameter:$3$
Intersection array:$\{4,3,2; 1,2,4\}$
Spectrum:$4^1 (\sqrt{2})^6 (-\sqrt{2})^6 (-4)^1$
Automorphism group:$PGL(2,7)$
Distance-transitive:Yes
Bipartite




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See also: Heawood graph
Last updated: 19 February 2017