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Fungrim entry: 948167

Bn=k=0n{nk}B_{n} = \sum_{k=0}^{n} \left\{{n \atop k}\right\}
Assumptions:nZ0n \in \mathbb{Z}_{\ge 0}
B_{n} = \sum_{k=0}^{n} \left\{{n \atop k}\right\}

n \in \mathbb{Z}_{\ge 0}
Fungrim symbol Notation Short description
BellNumberBnB_{n} Bell number
Sumnf(n)\sum_{n} f(n) Sum
StirlingS2{nk}\left\{{n \atop k}\right\} Stirling number of the second kind
ZZGreaterEqualZn\mathbb{Z}_{\ge n} Integers greater than or equal to n
Source code for this entry:
    Formula(Equal(BellNumber(n), Sum(StirlingS2(n, k), For(k, 0, n)))),
    Assumptions(Element(n, ZZGreaterEqual(0))))

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2021-03-15 19:12:00.328586 UTC