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.

A160181 Number of partitions of sets containing from 0 to n elements into blocks of at least 2 elements.

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 7
5 18
6 59
7 221
8 936
9 4361
10 22083
11 120336
12 700653
13 4333933
14 28345090
15 195233255
16 1411303635
17 10675375402
18 84276173439
19 692752181561
20 5917018378496
21 52416910416933
22 480786834535247
23 4559132648864256

List of values

[1, 1, 2, 3, 7, 18, 59, 221, 936, 4361, 22083, 120336, 700653, 4333933, 28345090, 195233255, 1411303635, 10675375402, 84276173439, 692752181561, 5917018378496, 52416910416933, 480786834535247, 4559132648864256]

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

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