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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.

A270761 Total sum of the sizes of all blocks with maximal element 7 in all set partitions of {1,2,...,n}.

Table of values

n a(n)
7 2095
8 7307
9 29278
10 131007
11 643401
12 3426532
13 19610565
14 119762455
15 776018428
16 5310053713
17 38218929257
18 288361428110
19 2274040468083
20 18695782169431
21 159876844021430
22 1419201089763907
23 13053572286094533
24 124202259586825404
25 1220668798203165121

List of values

[2095, 7307, 29278, 131007, 643401, 3426532, 19610565, 119762455, 776018428, 5310053713, 38218929257, 288361428110, 2274040468083, 18695782169431, 159876844021430, 1419201089763907, 13053572286094533, 124202259586825404, 1220668798203165121]

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

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