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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.

A248118 Number of subsets of {1,...,n} containing n and having at least one set partition into 9 blocks with equal element sum.

Table of values

n a(n)
17 1
18 2
19 11
20 26
21 111
22 280
23 980
24 2599
25 8292
26 22644
27 67300

List of values

[1, 2, 11, 26, 111, 280, 980, 2599, 8292, 22644, 67300]

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

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