Doubled Odd graph D(O_5) | DistanceRegular.org

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Doubled Odd graph $D(O_5)$

Number of vertices:	$252$
Diameter:	$9$
Intersection array:	$\{5,4,4,3,3,2,2,1,1;1,1,2,2,3,3,4,4,5\}$
Spectrum:	$5^1 4^8 3^{27} 2^{48} 1^{42} (-1)^{42} (-2)^{48} (-3)^{27} (-4)^8 (-5)^1$
Automorphism group:	$S_{9} \times 2$
Distance-transitive:	Yes
Bipartite, Antipodal

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Last updated: 28 February 2024