261954
domain: N
Appears in sequences
- 2^(n-1) - n*(n+1)/2.at n=18A014846
- Triangle read by rows: coefficients of second-order hypergeometric-harmonic polynomials.at n=40A222061
- a(n) = (n + 1)^2*(5*n^2 + 10*n + 2)/2.at n=17A269237
- Number of connected dominating sets in the complete tripartite graph K_{n,n,n}.at n=5A291703
- a(n) = (2^n-1)^2*(2^n + 2).at n=6A302942
- Number T(n,k) of endofunctions on [n] with exactly k isolated fixed points; triangle T(n,k), n >= 0, 0 <= k <= n, read by rows.at n=49A350212