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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.

A351940 a(n) is the number of partitions of the set {1,2,...,n} into lists having a prime number of elements.

Table of values

n a(n)
0 1
1 0
2 2
3 6
4 12
5 240
6 480
7 12600
8 62160
9 665280
10 10009440
11 94802400
12 1497545280
13 23662679040
14 317854817280
15 5236146115200
16 102522189369600
17 1772579589580800
18 39459091697625600
19 809304973699622400
20 17463916757211724800
21 388537548150495744000

List of values

[1, 0, 2, 6, 12, 240, 480, 12600, 62160, 665280, 10009440, 94802400, 1497545280, 23662679040, 317854817280, 5236146115200, 102522189369600, 1772579589580800, 39459091697625600, 809304973699622400, 17463916757211724800, 388537548150495744000]

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

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