# 1 − 2 + 3 − 4 + · · ·

> infinite series

**Wikidata**: [Q438859](https://www.wikidata.org/wiki/Q438859)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/1_−_2_+_3_−_4_+_⋯)  
**Source**: https://4ort.xyz/entity/1-2-3-4-q438859-2


## References

1. Freebase Data Dumps. 2013