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 A302216 #6 Apr 30 2022 20:59:28 %S A302216 32,10,386,55,1725,1395,11170,46215,142804,1296927,3754619,31292819, %T A302216 127447908,726795706,4149225211,18401692931,123060970268,529741320345, %U A302216 3425619819677,16330961751579,94036013407323,503607474346495 %N A302216 Number of 6 X n 0..1 arrays with every element equal to 0, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A302216 Row 6 of A302212. %H A302216 R. H. Hardin, <a href="/A302216/b302216.txt">Table of n, a(n) for n = 1..210</a> %e A302216 Some solutions for n=5 %e A302216 ..0..0..1..1..0. .0..0..1..1..0. .0..1..1..0..0. .0..1..1..0..0 %e A302216 ..1..0..0..1..1. .1..0..0..1..1. .1..1..0..0..1. .1..1..1..0..0 %e A302216 ..0..0..1..1..0. .1..0..0..1..0. .0..1..1..0..0. .0..1..0..0..1 %e A302216 ..1..0..0..1..0. .1..0..1..1..1. .0..1..0..0..1. .0..1..1..0..1 %e A302216 ..1..0..1..1..1. .1..0..0..1..0. .0..1..1..0..0. .1..1..0..0..0 %e A302216 ..0..0..0..1..0. .0..0..0..1..0. .1..1..0..0..1. .0..1..1..0..1 %Y A302216 Cf. A302212. %K A302216 nonn %O A302216 1,1 %A A302216 _R. H. Hardin_, Apr 03 2018