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.

A189502 Number of arrangements of 6 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.

Table of values

n a(n)
1 0
2 550
3 4920
4 24806
5 85480
6 238836
7 567774
8 1218778
9 2397016
10 4388664
11 7630748
12 12628448
13 20067182
14 30962660
15 46263140
16 67394664
17 96114728
18 134386478
19 184598554
20 249470222
21 331776594
22 436360316
23 567697448
24 729535354
25 926393324

List of values

[0, 550, 4920, 24806, 85480, 238836, 567774, 1218778, 2397016, 4388664, 7630748, 12628448, 20067182, 30962660, 46263140, 67394664, 96114728, 134386478, 184598554, 249470222, 331776594, 436360316, 567697448, 729535354, 926393324]

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

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