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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.

A309189 (1/10) times the number of n-member subsets of [10n] whose elements sum to a multiple of n.

Table of values

n a(n)
1 1
2 9
3 136
4 2289
5 42376
6 834336
7 17125354
8 362345361
9 7847250409
10 173103073384
11 3875837737520
12 87857163416064
13 2012268157890524
14 46497242493163450
15 1082614775186919136
16 25374686712458407441
17 598217593341171422090
18 14176230568946364963825

List of values

[1, 9, 136, 2289, 42376, 834336, 17125354, 362345361, 7847250409, 173103073384, 3875837737520, 87857163416064, 2012268157890524, 46497242493163450, 1082614775186919136, 25374686712458407441, 598217593341171422090, 14176230568946364963825]

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

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