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.

A189505 Number of arrangements of 9 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)
1 140
2 26816
3 852940
4 10077438
5 67449574
6 326423068
7 1218634086
8 3870426602
9 10678039872
10 26541186546
11 60515390904
12 129217908546
13 258501393812
14 493822993858
15 903540678414
16 1589111278140
17 2702453254684
18 4467233004764

List of values

[140, 26816, 852940, 10077438, 67449574, 326423068, 1218634086, 3870426602, 10678039872, 26541186546, 60515390904, 129217908546, 258501393812, 493822993858, 903540678414, 1589111278140, 2702453254684, 4467233004764]

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

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