562595

Appears in sequences

• 2-Bell numbers: a(n) = number of partitions of [n+1] with a distinguished block.at n=9A005493
• Triangle T(n,k) is the number of restricted growth strings (RGS) of set partitions of {1..n} that have an increase at index k (1<=k<n).at n=45A056861
• Number of embedded coalitions in an n-person game.at n=9A138378
• Triangle read by rows: T(n,k) = Sum_{j=k..n} binomial(n,j)*Stirling_2(j,k)*Bell(n-j), where Bell(n) = A000110(n), for n >= 1, 0 <= k <= n-1.at n=46A244489
• Number of set partitions of [n] such that for each block b the smallest integer interval containing b has at most ten elements.at n=11A276726