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 A302806 #4 Apr 13 2018 13:07:51 %S A302806 32,1405,28128,632004,14458177,327603711,7428713676,168777255305, %T A302806 3832039683236,87009511631968,1975863003410635,44867546574739748, %U A302806 1018847987183719920,23136108111721947785,525376281243945915231 %N A302806 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A302806 Column 6 of A302808. %H A302806 R. H. Hardin, <a href="/A302806/b302806.txt">Table of n, a(n) for n = 1..210</a> %e A302806 Some solutions for n=5 %e A302806 ..0..1..0..0..1..0. .0..0..1..1..0..0. .0..1..0..0..1..0. .0..0..1..1..0..0 %e A302806 ..0..0..1..0..1..1. .0..0..0..1..0..0. .0..0..1..1..0..1. .0..0..0..1..0..1 %e A302806 ..0..0..0..0..1..0. .0..0..0..1..0..0. .0..0..0..1..0..1. .0..0..0..1..1..0 %e A302806 ..0..0..0..1..1..0. .0..1..1..1..1..1. .0..0..0..1..0..0. .0..0..1..1..1..1 %e A302806 ..0..1..1..1..0..1. .0..0..0..0..0..0. .0..0..1..1..1..1. .0..1..0..0..0..0 %Y A302806 Cf. A302808. %K A302806 nonn %O A302806 1,1 %A A302806 _R. H. Hardin_, Apr 13 2018