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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.

A199830 Number of -6..6 arrays x(0..n+1) of n+2 elements with zero sum and no two neighbors summing to zero.

Table of values

n a(n)
1 102
2 1144
3 11384
4 124982
5 1402934
6 15805218
7 179213048
8 2044221894
9 23427591518
10 269528370904
11 3111004900884
12 36009192415678
13 417810425670462
14 4858093196583212
15 56593178356427376
16 660363780853262084

List of values

[102, 1144, 11384, 124982, 1402934, 15805218, 179213048, 2044221894, 23427591518, 269528370904, 3111004900884, 36009192415678, 417810425670462, 4858093196583212, 56593178356427376, 660363780853262084]

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

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