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 A303628 #4 Apr 27 2018 09:58:29 %S A303628 32,10,2520,10741,398859,6446485,179884814,4470005178,122594183754, %T A303628 3358212405222,93494167786193,2615702793245652,73423169266382719, %U A303628 2065363849547312414,58153976434030392443,1638589480520177365526 %N A303628 Number of 6Xn 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303628 Row 6 of A303624. %H A303628 R. H. Hardin, <a href="/A303628/b303628.txt">Table of n, a(n) for n = 1..210</a> %e A303628 Some solutions for n=5 %e A303628 ..0..0..0..0..0. .0..0..0..1..1. .0..0..0..0..1. .0..0..0..1..0 %e A303628 ..0..0..0..0..1. .0..0..0..1..1. .0..0..0..0..0. .0..0..0..1..0 %e A303628 ..1..1..0..0..0. .1..1..1..0..0. .0..0..1..0..0. .0..0..1..1..1 %e A303628 ..1..1..1..0..0. .1..1..1..0..0. .0..1..1..1..1. .0..0..0..1..0 %e A303628 ..1..1..1..1..1. .0..0..0..0..0. .0..0..1..1..0. .0..0..1..1..0 %e A303628 ..0..1..0..1..1. .1..0..1..0..0. .0..0..0..1..1. .0..0..0..1..1 %Y A303628 Cf. A303624. %K A303628 nonn %O A303628 1,1 %A A303628 _R. H. Hardin_, Apr 27 2018