57002
domain: N
Appears in sequences
- a(n) = 3^(n-1) - 2^n + 1 (essentially Stirling numbers of second kind).at n=10A028243
- Triangle read by rows: the positive terms of A163626.at n=31A249163
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 673", based on the 5-celled von Neumann neighborhood.at n=34A273406
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 961", based on the 5-celled von Neumann neighborhood.at n=34A273833
- Triangle T(n, k) read by rows: T(n, k) = S2(n, k)*k! + S2(n, k-1)*(k-1)! with the Stirling2 triangle S2 = A048993.at n=58A285867
- Number T(n,k) of set partitions of [n] into k blocks such that the absolute difference between least elements of consecutive blocks is always > 1; triangle T(n,k), n>=0, 0<=k<=ceiling(n/2), read by rows.at n=58A298668
- Triangle read by rows: T(n,k) = Sum_{j=0..2k} (-1)^j * binomial(2k,j) * (2+k-j)^(2n).at n=16A390029
- Triangle read by rows: T(n,k) = Sum_{j=0..k} (-1)^j * binomial(k,j) * (3-j)^n.at n=57A391210