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 A303082 #4 Apr 18 2018 12:19:47 %S A303082 1,168,432,3667,34430,409478,4862916,60442630,764631608,9669569563, %T A303082 122749248476,1560529225399,19844842693550,252421510589391, %U A303082 3211301552676338,40856246979685360,519811697254457408 %N A303082 Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303082 Column 6 of A303084. %H A303082 R. H. Hardin, <a href="/A303082/b303082.txt">Table of n, a(n) for n = 1..210</a> %e A303082 Some solutions for n=5 %e A303082 ..0..1..1..0..1..1. .0..1..1..1..1..0. .0..0..0..1..1..1. .0..0..0..0..0..1 %e A303082 ..1..1..1..0..1..1. .1..1..0..1..1..1. .1..0..0..1..1..0. .0..0..0..0..0..0 %e A303082 ..0..0..0..0..0..0. .1..1..0..1..1..0. .0..0..1..1..1..0. .1..1..1..1..1..0 %e A303082 ..1..0..0..1..0..0. .0..0..1..0..1..0. .1..0..0..1..1..0. .1..1..1..1..0..0 %e A303082 ..1..0..0..1..0..0. .1..0..0..1..1..1. .1..0..0..1..1..1. .1..1..1..1..0..0 %Y A303082 Cf. A303084. %K A303082 nonn %O A303082 1,2 %A A303082 _R. H. Hardin_, Apr 18 2018