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.

A330459 Number of set partitions of set-systems with total sum n.

Table of values

n a(n)
0 1
1 1
2 1
3 4
4 6
5 11
6 26
7 42
8 78
9 148
10 280
11 481
12 867
13 1569
14 2742
15 4933
16 8493
17 14857
18 25925
19 44877
20 77022
21 132511
22 226449
23 385396
24 657314
25 1111115
26 1875708
27 3157379
28 5309439
29 8885889
30 14861478
31 24760339
32 41162971
33 68328959
34 113099231
35 186926116
36 308230044

List of values

[1, 1, 1, 4, 6, 11, 26, 42, 78, 148, 280, 481, 867, 1569, 2742, 4933, 8493, 14857, 25925, 44877, 77022, 132511, 226449, 385396, 657314, 1111115, 1875708, 3157379, 5309439, 8885889, 14861478, 24760339, 41162971, 68328959, 113099231, 186926116, 308230044]