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.

A262047 Number of ordered partitions of [n] such that at least two parts have the same size.

Table of values

n a(n)
0 0
1 0
2 2
3 6
4 66
5 510
6 4280
7 46536
8 542962
9 7074654
10 101914512
11 1621871196
12 28087868160
13 526841965260
14 10641234260358
15 230278335503586
16 5315641087796562
17 130370690653563150
18 3385534274596691456
19 92801584815121975452
20 2677687776095609649256

List of values

[0, 0, 2, 6, 66, 510, 4280, 46536, 542962, 7074654, 101914512, 1621871196, 28087868160, 526841965260, 10641234260358, 230278335503586, 5315641087796562, 130370690653563150, 3385534274596691456, 92801584815121975452, 2677687776095609649256]

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

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