# square triangular number

> integer that is both a perfect square and a triangular number

**Wikidata**: [Q1885380](https://www.wikidata.org/wiki/Q1885380)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Square_triangular_number)  
**Source**: https://4ort.xyz/entity/square-triangular-number


## References

1. Freebase Data Dumps. 2013
2. BabelNet