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.

A287258 Number of set partitions of [n] such that all absolute differences between least elements of consecutive blocks are <= eight.

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 115974
11 678310
12 4205230
13 27497463
14 188884702
15 1358500111
16 10201272170
17 79783911418
18 648489059992
19 5467348769587
20 47728811273817
21 430751210469094
22 4013169321694153
23 38547034091725550
24 381252702363363969

List of values

[1, 1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115974, 678310, 4205230, 27497463, 188884702, 1358500111, 10201272170, 79783911418, 648489059992, 5467348769587, 47728811273817, 430751210469094, 4013169321694153, 38547034091725550, 381252702363363969]