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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.

A270962 Number of set partitions of [n] having exactly eight pairs (m,m+1) such that m+1 is in some block b and m is in block b+1.

Table of values

n a(n)
13 15
14 857
15 21129
16 361154
17 5138182
18 66407157
19 816411988
20 9796844472
21 116493895521
22 1385342513224
23 16571907424860
24 200166968890873
25 2447436683633895
26 30343738969483443
27 381914993014556712
28 4883614045607479339
29 63476602847240143719
30 838919983940694715522

List of values

[15, 857, 21129, 361154, 5138182, 66407157, 816411988, 9796844472, 116493895521, 1385342513224, 16571907424860, 200166968890873, 2447436683633895, 30343738969483443, 381914993014556712, 4883614045607479339, 63476602847240143719, 838919983940694715522]

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

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