This graph is the antipodal quotient of the Johnson graph $J(14,7)$.
Number of vertices: | $1716$ |
Diameter: | $3$ |
Intersection array: | $\{49,36,25;1,4,9\}$ |
Spectrum: | $49^1 23^{77} 5^{637} (-5)^{1001}$ |
Automorphism group: | $\mathrm{S}_{14}$ |
Distance-transitive: | Yes |
Primitive |