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.

A287584 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 five.

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 15
5 52
6 203
7 824
8 3407
9 14176
10 58954
11 244412
12 1010802
13 4167621
14 17133558
15 70278017
16 287797888
17 1177218237
18 4811244031
19 19651589669
20 80234989720
21 327503437323
22 1336574600154
23 5454075504109
24 22254465906164
25 90801509373219
26 370472833209387

List of values

[1, 1, 2, 5, 15, 52, 203, 824, 3407, 14176, 58954, 244412, 1010802, 4167621, 17133558, 70278017, 287797888, 1177218237, 4811244031, 19651589669, 80234989720, 327503437323, 1336574600154, 5454075504109, 22254465906164, 90801509373219, 370472833209387]

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

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