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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.

A270961 Number of set partitions of [n] having exactly seven 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)
12 36
13 1260
14 23258
15 324891
16 3968251
17 45402693
18 504270360
19 5543886289
20 61008463952
21 676542685621
22 7591571114493
23 86426778077884
24 999973097589274
25 11771498403908062
26 141085372337100460
27 1722345651885728412
28 21421106761851959049
29 271444082790121795320

List of values

[36, 1260, 23258, 324891, 3968251, 45402693, 504270360, 5543886289, 61008463952, 676542685621, 7591571114493, 86426778077884, 999973097589274, 11771498403908062, 141085372337100460, 1722345651885728412, 21421106761851959049, 271444082790121795320]

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

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