41973

Appears in sequences

• Number of asymmetric mobiles (circular rooted trees) with n nodes and 3 leaves.at n=35A055364
• Triangle, read by rows, equal to the matrix cube of A113370.at n=15A113378
• Column 0 of triangle A113378, also equals column 0 of A113389.at n=5A113379
• Triangle R, read by rows, such that R^3 transforms column k of R^3 into column k+1 of R^3, so that column k of R^3 equals column 0 of R^(3*k+3), where R^3 denotes the matrix cube of R.at n=15A113389
• Triangle, read by rows, given by the product R^-2*Q^3 = Q^-1*P^2 using triangular matrices P=A113370, Q=A113381, R=A113389.at n=22A114151
• Location of record values in A080577; also partial sums of A006128 plus 1.at n=23A124920
• a(n) is the difference by which n^n overestimates the value of (1/2) Sum_{k>=0} k^n/2^k.at n=6A133286
• a(n) = (2*n^3 + 5*n^2 - 13*n)/2.at n=33A162262
• Number T(n,k) of endofunctions on [n] such that at least one preimage with cardinality k exists and, if j is the largest value with a nonempty preimage, the preimage cardinality of i is >=k for all i<=j and equal to k for at least one i<=j; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=21A245733