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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.

A318630 Number of 9-member subsets of [9*n] whose elements sum to a multiple of n.

Table of values

n a(n)
0 0
1 1
2 24310
3 1562331
4 23535820
5 177232627
6 886322982
7 3381098545
8 10639125640
9 28987537806
10 70625252863
11 157366449604
12 325949658015
13 635299897870
14 1176174344125
15 2083664997876
16 3553074951283
17 5859727868575
18 9383313282102
19 14637413449945
20 22304900540890

List of values

[0, 1, 24310, 1562331, 23535820, 177232627, 886322982, 3381098545, 10639125640, 28987537806, 70625252863, 157366449604, 325949658015, 635299897870, 1176174344125, 2083664997876, 3553074951283, 5859727868575, 9383313282102, 14637413449945, 22304900540890]

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

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