137987

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=28A111299
• Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves.at n=30A245824
• Numbers k where k^2 is an anagram of (k+2)^2.at n=32A261749
• Matula-Goebel number of the rooted binary tree with Colijn-Plazzotta number n.at n=31A356121