Triangle of Stirling numbers of 2nd kind, S2(n,k), n >= 1, 1 <= k <= n.
1, 1, 1, 1, 3, 1, 1, 7, 6, 1, 1, 15, 25, 10, 1, 1, 31, 90, 65, 15, 1, 1, 63, 301, 350, 140, 21
2 seqfan posts
Sat Mar 19 11:54:06 CET 2011 [seqfan] Re: Multiset defining partitions