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.

A032032 Number of ways to partition n labeled elements into sets of sizes of at least 2 and order the sets.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 7
5 21
6 141
7 743
8 5699
9 42241
10 382153
11 3586155
12 38075247
13 428102117
14 5257446533
15 68571316063
16 959218642651
17 14208251423433
18 223310418094785
19 3699854395380371
20 64579372322979335
21 1182959813115161773
22 22708472725269799933
23 455643187943171348103

List of values

[1, 0, 1, 1, 7, 21, 141, 743, 5699, 42241, 382153, 3586155, 38075247, 428102117, 5257446533, 68571316063, 959218642651, 14208251423433, 223310418094785, 3699854395380371, 64579372322979335, 1182959813115161773, 22708472725269799933, 455643187943171348103]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.