cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A319379 Number of plane trees with n nodes where the sequence of branches directly under any given node is a chain of multisets.

Table of values

n a(n)
1 1
2 1
3 2
4 4
5 9
6 19
7 43
8 93
9 207
10 452
11 997
12 2176
13 4776
14 10418
15 22781
16 49674
17 108421

List of values

[1, 1, 2, 4, 9, 19, 43, 93, 207, 452, 997, 2176, 4776, 10418, 22781, 49674, 108421]