# Brouwer–Haemers graph

> 20-regular undirected graph with 81 vertices and 810 edges

**Wikidata**: [Q939219](https://www.wikidata.org/wiki/Q939219)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Brouwer–Haemers_graph)  
**Source**: https://4ort.xyz/entity/brouwer-haemers-graph


## References

1. House of Graphs