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.

A189504 Number of arrangements of 8 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 7384
3 152358
4 1350418
5 7250142
6 29261538
7 93830584
8 260746932
9 640437244
10 1434950142
11 2985187290
12 5855131794
13 10847051914
14 19293465580
15 33015900952
16 54518107984
17 87418596734
18 136633143572
19 208413957692
20 311534423834

List of values

[0, 7384, 152358, 1350418, 7250142, 29261538, 93830584, 260746932, 640437244, 1434950142, 2985187290, 5855131794, 10847051914, 19293465580, 33015900952, 54518107984, 87418596734, 136633143572, 208413957692, 311534423834]

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

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