The complement of this graph is the Kneser graph $\mathrm{K}(11,2)$.
Number of vertices: | $55$ |
Diameter: | $2$ |
Intersection array: | $\{18,8;1,4\}$ |
Spectrum: | $18^1 7^{10} (-2)^{44}$ |
Automorphism group: | $\mathrm{S}_{11}$ |
Distance-transitive: | Yes |
Primitive |