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 A303106 #4 Apr 18 2018 12:41:53 %S A303106 0,361,17229,523578,22292709,906385523,37220475492,1524895247525, %T A303106 62554206264579,2565661994238856,105233833702602217, %U A303106 4316305100898465120,177039165517795607628,7261509407874389623218,297840901987105112478569 %N A303106 Number of 6Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303106 Row 6 of A303102. %H A303106 R. H. Hardin, <a href="/A303106/b303106.txt">Table of n, a(n) for n = 1..210</a> %e A303106 Some solutions for n=5 %e A303106 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 %e A303106 ..0..0..0..1..1. .0..0..0..0..0. .0..0..0..1..0. .0..0..0..1..0 %e A303106 ..1..0..1..1..1. .1..1..1..1..1. .0..1..0..1..1. .1..1..1..0..0 %e A303106 ..0..1..0..0..1. .0..0..0..0..0. .0..0..1..1..0. .1..0..1..1..1 %e A303106 ..0..1..0..1..0. .1..1..0..1..1. .1..1..0..0..1. .0..1..1..0..0 %e A303106 ..0..0..1..0..0. .1..1..0..0..1. .1..1..1..0..0. .0..0..0..1..1 %Y A303106 Cf. A303102. %K A303106 nonn %O A303106 1,2 %A A303106 _R. H. Hardin_, Apr 18 2018