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.

A269207 Number of 7Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.

Table of values

n a(n)
1 16384
2 8787660
3 2380537188
4 672230393004
5 179867149105740
6 47121391706947500
7 12093315071771856492
8 3057161412747926879388
9 763401355846887190121676
10 188738443220730807440394588
11 46278051540027048274339056012

List of values

[16384, 8787660, 2380537188, 672230393004, 179867149105740, 47121391706947500, 12093315071771856492, 3057161412747926879388, 763401355846887190121676, 188738443220730807440394588, 46278051540027048274339056012]

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

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