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.
%I A189160 #7 Jul 22 2025 11:35:16 %S A189160 177,31329,5545233,507947896,48083827685,4101554902927, %T A189160 327166323321331,25828698626846656,1988132110003598299, %U A189160 151712463019974271421,11512137558937549516129,869513813648725138555115 %N A189160 Number of nX8 binary arrays without the pattern 0 0 1 1 diagonally, vertically or horizontally. %C A189160 Column 8 of A189161 %H A189160 R. H. Hardin, <a href="/A189160/b189160.txt">Table of n, a(n) for n = 1..39</a> %e A189160 Some solutions for 4X8 %e A189160 ..0..0..0..0..0..1..0..0....0..0..0..1..0..1..0..0....0..0..0..0..0..0..0..1 %e A189160 ..0..0..0..1..0..0..0..1....0..0..0..0..0..1..0..0....0..0..1..0..1..0..0..0 %e A189160 ..0..0..0..0..1..0..0..0....0..0..0..1..0..1..0..1....0..0..0..0..0..0..0..0 %e A189160 ..0..0..0..0..0..1..0..0....0..0..0..0..0..1..0..0....0..0..0..1..0..0..0..0 %K A189160 nonn %O A189160 1,1 %A A189160 _R. H. Hardin_ Apr 17 2011