DistanceRegular.org
Johnson graph $J(9,3)$
Number of vertices:
$84$
Diameter:
$3$
Intersection array:
$\{18,10,4;1,4,9\}$
Spectrum:
$18^1 9^8 2^{27} (-3)^{48}$
Automorphism group:
$S_9$
Distance-transitive:
Yes
Primitive
Downloads
Adjacency matrix
Adjacency matrix in GAP format
Adjacency matrix in CSV format
Graph in GRAPE format
Links
Andries Brouwer
Wikipedia
Wolfram
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Graphs with 51-100 vertices
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Graphs with diameter 3
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Johnson Graphs
Last updated: 4 February 2017