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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.

A309184 (1/5) times the number of n-member subsets of [5n] whose elements sum to a multiple of n.

Table of values

n a(n)
1 1
2 4
3 31
4 244
5 2126
6 19780
7 192130
8 1922740
9 19692535
10 205444504
11 2175519380
12 23322657460
13 252631900236
14 2760767859784
15 30400169157656
16 336977765092788
17 3757141504436393
18 42107201575818028
19 474084628585822413
20 5359833704140818744
21 60823006052351729266

List of values

[1, 4, 31, 244, 2126, 19780, 192130, 1922740, 19692535, 205444504, 2175519380, 23322657460, 252631900236, 2760767859784, 30400169157656, 336977765092788, 3757141504436393, 42107201575818028, 474084628585822413, 5359833704140818744, 60823006052351729266]

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

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