DistanceRegular.org
$\mathrm{NO}_9^-(3)$ graph
Number of vertices:
$3240$
Diameter:
$2$
Intersection array:
$\{2132,729;1,1404\}$
Spectrum:
$2132^1 26^{1640} (-28)^{1599}$
Automorphism group:
$\mathrm{O}(9,3):2$
Distance-transitive:
Yes
Primitive
Downloads
Graph in GRAPE format
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Last updated: 31 May 2024