263431

Appears in sequences

• T(2n,n-4), T given by A026747.at n=6A026859
• LAH transform of squares.at n=7A103194
• Numbers whose Matula tree is a binary tree (i.e., root has degree 2 and all nodes except root and leaves have degree 3).at n=32A111299
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1000-1110-0111 pattern in any orientation.at n=15A146821
• Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves.at n=34A245824
• Matula-Goebel numbers of unlabeled binary rooted semi-identity trees.at n=16A339193
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} j^k * (n-j)! * binomial(n,j)^2.at n=43A341200