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.

A131407 Repeated set partitions or nested set partitions. Possible coalitions among n persons.

Table of values

n a(n)
0 1
1 1
2 2
3 11
4 95
5 1307
6 27035
7 788279
8 30812087
9 1554832679
10 98387784047
11 7628836816295
12 711320467520855
13 78520062277781087
14 10127079289703949695
15 1508987827451079129599
16 257250406707409951420079
17 49750955749787132205813743
18 10833471589449269308161546191

List of values

[1, 1, 2, 11, 95, 1307, 27035, 788279, 30812087, 1554832679, 98387784047, 7628836816295, 711320467520855, 78520062277781087, 10127079289703949695, 1508987827451079129599, 257250406707409951420079, 49750955749787132205813743, 10833471589449269308161546191]

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

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