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.

A271793 Number of set partitions of [n] having exactly six pairs (m,m+1) such that m is in some block b and m+1 is in block b+1.

Table of values

n a(n)
6 0
7 1
8 28
9 416
10 4658
11 45095
12 404275
13 3485508
14 29543547
15 249503219
16 2117198929
17 18150345636
18 157763663783
19 1393693891866
20 12533041906408
21 114848421469811
22 1073139463501186
23 10228550424931925
24 99466689685460697
25 986879431951833062
26 9989549096908876766

List of values

[0, 1, 28, 416, 4658, 45095, 404275, 3485508, 29543547, 249503219, 2117198929, 18150345636, 157763663783, 1393693891866, 12533041906408, 114848421469811, 1073139463501186, 10228550424931925, 99466689685460697, 986879431951833062, 9989549096908876766]

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

Content is available under The OEIS End-User License Agreement.