53226

Appears in sequences

• Map from binary trees of size n to the set of corresponding trivalent plane trees (tpt) represented as size 2n+1 general trees.at n=24A083930
• Number of n element 0..2 arrays with each element the minimum of 4 adjacent elements of a random 0..2 array of n+3 elements.at n=14A217879
• Number of conjugacy classes of the symmetric group S_n when conjugating only by even permutations.at n=41A242101
• The number of monic integer polynomials of degree n all of whose roots are distinct and of modulus at most 1.at n=33A280709