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 A303716 #4 Apr 29 2018 10:52:45 %S A303716 8,7,14,36,81,169,361,784,1681,3600,7744,16641,35721,76729,164836, %T A303716 354025,760384,1633284,3508129,7535025,16184529,34762816,74666881, %U A303716 160376896,344473600,739894401,1589218225,3413480625,7331811876,15747991081 %N A303716 Number of nX5 0..1 arrays with every element unequal to 0, 1 or 5 king-move adjacent elements, with upper left element zero. %C A303716 Column 5 of A303719. %H A303716 R. H. Hardin, <a href="/A303716/b303716.txt">Table of n, a(n) for n = 1..210</a> %F A303716 Empirical: a(n) = a(n-1) +a(n-2) +3*a(n-3) +a(n-4) -a(n-5) -a(n-6) for n>9 %e A303716 Some solutions for n=5 %e A303716 ..0..0..0..0..0. .0..0..0..1..0. .0..1..0..0..0. .0..0..0..0..0 %e A303716 ..1..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1 %e A303716 ..0..0..0..0..1. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 %e A303716 ..0..0..0..0..0. .0..0..0..0..0. .1..0..0..0..1. .0..0..0..0..0 %e A303716 ..0..1..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..1..0..0..0 %Y A303716 Cf. A303719. %K A303716 nonn %O A303716 1,1 %A A303716 _R. H. Hardin_, Apr 29 2018