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.

A188246 Number of arrangements of n+2 nonzero numbers x(i) in -6..6 with the sum of x(i)*x(i+1) equal to zero.

Table of values

n a(n)
1 144
2 436
3 6376
4 43440
5 521124
6 4875112
7 55994544
8 591604824
9 6764014136
10 75116513672
11 862566555260
12 9803647311540
13 113184217957288
14 1302374837233636
15 15107289166289400
16 175125528108662876
17 2039302796727309112

List of values

[144, 436, 6376, 43440, 521124, 4875112, 55994544, 591604824, 6764014136, 75116513672, 862566555260, 9803647311540, 113184217957288, 1302374837233636, 15107289166289400, 175125528108662876, 2039302796727309112]

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

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