DistanceRegular.org
$2^{\text{nd}}\text{ subconstituent of Hoffman-Singleton graph}$
Number of vertices:
$42$
Diameter:
$3$
Intersection array:
$\{6,5,1;1,1,6\}$
Spectrum:
$6^1 2^{21} (-1)^6 (-3)^{14}$
Automorphism group:
$S_7$
Distance-transitive:
$\text{Yes}$
Antipodal
$\text{Downloads}$
$\text{Adjacency matrix}$
$\text{Adjacency matrix in GAP format}$
$\text{Adjacency matrix in CSV format}$
$\text{Graph in GRAPE format}$
Back to:
A-Z index
•
Graphs with up to 50 vertices
•
Graphs with diameter 3
•
Graphs with valency 6
•
Antipodal covers of complete graphs
Last updated: 21 May 2019