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.

A269072 Number of nX5 binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.

Table of values

n a(n)
1 23
2 185
3 1887
4 17713
5 165607
6 1529241
7 14011359
8 127528641
9 1154377943
10 10400164377
11 93314875007
12 834244316721
13 7434343205095
14 66061046189497
15 585498663953471
16 5177144091416833
17 45680435610848791
18 402277442193052665

List of values

[23, 185, 1887, 17713, 165607, 1529241, 14011359, 127528641, 1154377943, 10400164377, 93314875007, 834244316721, 7434343205095, 66061046189497, 585498663953471, 5177144091416833, 45680435610848791, 402277442193052665]

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

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