75266

Appears in sequences

• T(n,0) + T(n,1) + ... + T(n,n), T given by A026670.at n=15A026677
• 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=22A111299
• Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves.at n=22A245824
• Number of length n+3 0..1 arrays with at most two downsteps in every n consecutive neighbor pairs.at n=21A256818
• Number of unit cubes that have a side on the surface of a p X p X p cube composed of p^3 unit cubes, where p is the n-th prime.at n=29A261971
• Matula-Goebel numbers of unlabeled binary rooted semi-identity trees.at n=13A339193