Vertices 81 Radius 2 Girth 3 | Edges 810 Diameter 2 Automorphisms 233,280 | |
 | ||
In the mathematical field of graph theory, the Brouwer–Haemers graph is a 20-regular undirected graph with 81 vertices and 810 edges. It is the unique strongly regular graph with parameters (81, 20, 1, 6).
References
Brouwer–Haemers graph Wikipedia(Text) CC BY-SA