199591

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=30A111299
• Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves.at n=32A245824
• Matula-Goebel numbers of unlabeled binary rooted semi-identity trees.at n=15A339193