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.

A189493 Number of arrangements of n+1 nonzero numbers x(i) in -4..4 with the sum of floor(x(i)/x(i+1)) equal to zero.

Table of values

n a(n)
1 12
2 78
3 462
4 3388
5 24806
6 182634
7 1350418
8 10077438
9 75593372
10 569975518
11 4314566150
12 32776245696
13 249736590734
14 1907787461862
15 14606641601322
16 112053156457254
17 861099306196596
18 6627602924590818
19 51081646472620460

List of values

[12, 78, 462, 3388, 24806, 182634, 1350418, 10077438, 75593372, 569975518, 4314566150, 32776245696, 249736590734, 1907787461862, 14606641601322, 112053156457254, 861099306196596, 6627602924590818, 51081646472620460]

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

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