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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.

A270963 Number of set partitions of [n] having exactly nine 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)
14 5
15 522
16 17506
17 368606
18 6131236
19 89714397
20 1222378331
21 16017586392
22 205773378304
23 2622730297478
24 33419633878019
25 427875505471609
26 5523038725443790
27 72044774875932494
28 951266975170654957
29 12728521821662549888
30 172734660881786725453
31 2378751774455132263522

List of values

[5, 522, 17506, 368606, 6131236, 89714397, 1222378331, 16017586392, 205773378304, 2622730297478, 33419633878019, 427875505471609, 5523038725443790, 72044774875932494, 951266975170654957, 12728521821662549888, 172734660881786725453, 2378751774455132263522]

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

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