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.

A330469 Number of series-reduced rooted trees whose leaves are multisets with a total of n elements covering an initial interval of positive integers.

Table of values

n a(n)
0 1
1 1
2 4
3 24
4 250
5 3744
6 73408
7 1768088
8 50468854
9 1664844040
10 62304622320
11 2607765903568
12 120696071556230
13 6120415124163512
14 337440974546042416
15 20096905939846645064
16 1285779618228281270718
17 87947859243850506008984
18 6404472598196204610148232

List of values

[1, 1, 4, 24, 250, 3744, 73408, 1768088, 50468854, 1664844040, 62304622320, 2607765903568, 120696071556230, 6120415124163512, 337440974546042416, 20096905939846645064, 1285779618228281270718, 87947859243850506008984, 6404472598196204610148232]