# heptagonal pyramidal number

> pyramidal number

**Wikidata**: [Q606977](https://www.wikidata.org/wiki/Q606977)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Heptagonal_pyramidal_number)  
**Source**: https://4ort.xyz/entity/heptagonal-pyramidal-number


## References

1. Freebase Data Dumps. 2013