Paley graph P157 | DistanceRegular.org

Paley graph $P_{157}$

Number of vertices:	$157$
Diameter:	$2$
Intersection array:	$\{78,39;1,39\}$
Spectrum:	$78^1 \left(\frac{-1+\sqrt{157}}{2}\right)^{78} \left(\frac{-1-\sqrt{157}}{2}\right)^{78}$
Automorphism group:	$157:78$
Distance-transitive:	Yes
Primitive