# Kempner series

> harmonic series with all terms containing the digit '9' removed

**Wikidata**: [Q928481](https://www.wikidata.org/wiki/Q928481)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kempner_series)  
**Source**: https://4ort.xyz/entity/kempner-series


## References

1. Freebase Data Dumps. 2013