# Stirling number of the second kind

> number of ways to partition a set of n objects into k non-empty subsets

**Wikidata**: [Q2601117](https://www.wikidata.org/wiki/Q2601117)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Stirling_numbers_of_the_second_kind)  
**Source**: https://4ort.xyz/entity/stirling-number-of-the-second-kind


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)