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.

A199702 Number of -6..6 arrays x(0..n-1) of n elements with zero sum and no two neighbors equal.

Table of values

n a(n)
1 1
2 12
3 114
4 1236
5 13324
6 147072
7 1643204
8 18527516
9 210316392
10 2400684208
11 27527644696
12 316844861020
13 3658598730648
14 42361908912360
15 491666143730354
16 5718341649577364
17 66629811252553344
18 777637357808739752

List of values

[1, 12, 114, 1236, 13324, 147072, 1643204, 18527516, 210316392, 2400684208, 27527644696, 316844861020, 3658598730648, 42361908912360, 491666143730354, 5718341649577364, 66629811252553344, 777637357808739752]

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

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