关于第二类stirling数的一个恒等式

An Identity of Stirling Numbers of the Second Kind

利用集合划分原理证明了一些恒等式,并给出当n≥14时的第二类stirling数的恒等式.

The theory about Partition of a Finite Set is applied widely to the problems of Striling numbers of the second kind. According to this theory, this paper not only proves some identities, but also gives an identity of Stiding numbers of the second kind： S2 （n,n-7） ,when n≥ 14.