Math 2.0

Number theory Concept

Stirling numbers of the second kind

Summary

The Stirling numbers of the second kind S(n,k)S(n, k) count the partitions of an nn-element set into kk nonempty blocks. They connect ordinary powers with falling factorials and they sum to the Bell numbers. The node Stirling numbers of the second kind gives the precise definition.

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Further reading

  1. Web https://en.wikipedia.org/wiki/Stirling_numbers_of_the_second_kind, Definition
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