130986

Appears in sequences

• Quadrinomial coefficients.at n=17A005720
• Ranks of certain relations among Euler sums of weight n.at n=16A038360
• Number of free tree-like convex polyominoes with n cells.at n=17A204804
• a(n) = 2^(n-5) - A000931(n).at n=17A216714
• Number of binary strings of length 2n which contain the ones' complement of each of their two halves.at n=15A237500
• a(n) = 1+(n+1)^2+n!+Sum_{k=1..n-1} binomial(n,k)*n!/(n-k)!.at n=7A274294
• a(n) = (n + 1)^2 + n!*L_n(-1), where L_n(x) is the Laguerre polynomial.at n=7A317094