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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.

A287589 Number of set partitions of [n] such that all absolute differences between least elements of consecutive blocks and between consecutive elements within the blocks are not larger than ten.

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 15
5 52
6 203
7 877
8 4140
9 21147
10 115975
11 678570
12 4097621
13 25396897
14 160757829
15 1034542443
16 6742599834
17 44362398136
18 293897938033
19 1956688777638
20 13073261821160
21 87577473173716
22 587947614677023
23 3953463212747522
24 26614587904889651
25 179316842821307806

List of values

[1, 1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115975, 678570, 4097621, 25396897, 160757829, 1034542443, 6742599834, 44362398136, 293897938033, 1956688777638, 13073261821160, 87577473173716, 587947614677023, 3953463212747522, 26614587904889651, 179316842821307806]

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

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