cp's OEIS Frontend

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.

A309186 (1/7) times the number of n-member subsets of [7n] whose elements sum to a multiple of n.

Table of values

n a(n)
1 1
2 6
3 64
4 734
5 9276
6 124872
7 1753074
8 25366334
9 375677659
10 5667202856
11 86775157140
12 1345153548200
13 21069043965984
14 332927798516620
15 5301031234085664
16 84967018635587774
17 1369846562874360887
18 22199151535757780226
19 361411377745122110422
20 5908312923795257322184

List of values

[1, 6, 64, 734, 9276, 124872, 1753074, 25366334, 375677659, 5667202856, 86775157140, 1345153548200, 21069043965984, 332927798516620, 5301031234085664, 84967018635587774, 1369846562874360887, 22199151535757780226, 361411377745122110422, 5908312923795257322184]

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

Content is available under The OEIS End-User License Agreement.