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 A303459 #4 Apr 24 2018 10:24:59 %S A303459 16,512,12408,306767,7626768,189848373,4729712941,117851999934, %T A303459 2936875623336,73188908936110,1823941673502397,45454643346741044, %U A303459 1132781991907637247,28230245358586758157,703530728472049344422 %N A303459 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303459 Row 5 of A303456. %H A303459 R. H. Hardin, <a href="/A303459/b303459.txt">Table of n, a(n) for n = 1..210</a> %H A303459 R. H. Hardin, <a href="/A303459/a303459.txt">Empirical recurrence of order 68</a> %F A303459 Empirical recurrence of order 68 (see link above) %e A303459 Some solutions for n=5 %e A303459 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 %e A303459 ..0..0..1..1..0. .0..0..1..1..0. .0..0..1..0..0. .0..0..1..0..0 %e A303459 ..0..1..1..0..0. .1..0..1..1..0. .0..1..1..0..0. .0..1..1..0..0 %e A303459 ..1..0..0..1..1. .0..1..0..0..0. .0..1..1..1..0. .1..0..1..1..0 %e A303459 ..1..1..1..1..1. .0..0..0..1..1. .0..0..0..0..1. .1..0..0..0..1 %Y A303459 Cf. A303456. %K A303459 nonn %O A303459 1,1 %A A303459 _R. H. Hardin_, Apr 24 2018