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 A302805 #4 Apr 13 2018 13:07:10 %S A302805 16,384,5117,74072,1089773,15904814,232260380,3396923500,49653502029, %T A302805 725819333902,10610883930284,155117154439613,2267613174993517, %U A302805 33149833862902867,484610500065661957,7084420896663049377 %N A302805 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A302805 Column 5 of A302808. %H A302805 R. H. Hardin, <a href="/A302805/b302805.txt">Table of n, a(n) for n = 1..210</a> %H A302805 R. H. Hardin, <a href="/A302805/a302805.txt">Empirical recurrence of order 90</a> %F A302805 Empirical recurrence of order 90 (see link above) %e A302805 Some solutions for n=5 %e A302805 ..0..0..0..0..1. .0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..1 %e A302805 ..0..1..1..0..0. .1..1..1..1..1. .0..1..1..0..0. .0..1..1..1..0 %e A302805 ..0..0..1..0..0. .1..0..0..0..1. .1..1..0..0..1. .1..0..0..1..0 %e A302805 ..0..1..1..0..0. .0..0..0..1..0. .0..1..0..1..1. .1..0..1..1..0 %e A302805 ..0..0..1..0..1. .1..1..1..1..0. .1..0..0..0..0. .1..0..1..1..1 %Y A302805 Cf. A302808. %K A302805 nonn %O A302805 1,1 %A A302805 _R. H. Hardin_, Apr 13 2018