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 A303201 #4 Apr 19 2018 13:41:46 %S A303201 32,42,122,497,1751,8250,34801,138014,547379,2363422,9950923,40646071, %T A303201 165726180,698032757,2923119363,12072924913,49765448651,207852058476, %U A303201 867405410380,3597782646113,14902213961792,62057837398724 %N A303201 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303201 Row 6 of A303197. %H A303201 R. H. Hardin, <a href="/A303201/b303201.txt">Table of n, a(n) for n = 1..210</a> %e A303201 Some solutions for n=5 %e A303201 ..0..1..0..0..1. .0..1..1..0..0. .0..0..0..1..0. .0..0..1..0..1 %e A303201 ..1..1..0..1..0. .0..1..0..1..0. .0..1..1..1..0. .1..1..1..0..1 %e A303201 ..0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0. .1..0..1..0..1 %e A303201 ..0..1..0..1..1. .0..0..0..1..0. .0..1..0..1..0. .0..0..1..0..1 %e A303201 ..0..0..0..1..0. .0..1..1..1..0. .0..0..0..1..0. .1..0..1..0..1 %e A303201 ..1..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0. .1..0..1..0..1 %Y A303201 Cf. A303197. %K A303201 nonn %O A303201 1,1 %A A303201 _R. H. Hardin_, Apr 19 2018