26798

Appears in sequences

• 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=17A111299
• Number of partitions p of n such that the number of distinct parts is not a part and max(p) - min(p) is not a part.at n=42A241390
• Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves.at n=18A245824