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.

A322875 Number of set partitions of [n] such that the maximal absolute difference between the least elements of consecutive blocks equals two.

Table of values

n a(n)
2 0
3 1
4 5
5 21
6 86
7 361
8 1584
9 7315
10 35635
11 183080
12 990659
13 5635021
14 33622161
15 209973099
16 1369560267
17 9310957518
18 65852852210
19 483672626464
20 3683088047043
21 29033382412670
22 236591717703447
23 1990467019391404
24 17268021545339042
25 154304401318961489

List of values

[0, 1, 5, 21, 86, 361, 1584, 7315, 35635, 183080, 990659, 5635021, 33622161, 209973099, 1369560267, 9310957518, 65852852210, 483672626464, 3683088047043, 29033382412670, 236591717703447, 1990467019391404, 17268021545339042, 154304401318961489]

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

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