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.

A362639 Number of partitions of [n] whose blocks are ordered with increasing least elements and where block i (except possibly the last) has size i.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 3
6 4
7 15
8 36
9 70
10 120
11 756
12 2800
13 7920
14 18900
15 40040
16 388080
17 2106000
18 8408400
19 27489000
20 77837760
21 197520960
22 2756754000
23 20903929200
24 113809696000
25 497097881280
26 1847907341280
27 6062876820000
28 17990209036800
29 343877493960000
30 3501594297801600

List of values

[1, 1, 1, 1, 2, 3, 4, 15, 36, 70, 120, 756, 2800, 7920, 18900, 40040, 388080, 2106000, 8408400, 27489000, 77837760, 197520960, 2756754000, 20903929200, 113809696000, 497097881280, 1847907341280, 6062876820000, 17990209036800, 343877493960000, 3501594297801600]

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

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