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 A295210 #4 Nov 17 2017 07:23:48 %S A295210 1,14,102,916,9536,85215,775547,7213161,66719868,617206899,5712427735, %T A295210 52846385777,488921918232,4523682017995,41853575267115, %U A295210 387232937869441,3582725192257390,33147778088300382,306687046141834012 %N A295210 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s. %C A295210 Column 5 of A295213. %H A295210 R. H. Hardin, <a href="/A295210/b295210.txt">Table of n, a(n) for n = 1..210</a> %H A295210 R. H. Hardin, <a href="/A295210/a295210.txt">Empirical recurrence of order 78</a> %F A295210 Empirical recurrence of order 78 (see link above) %e A295210 Some solutions for n=6 %e A295210 ..1..1..0..0..0. .1..1..1..1..1. .0..1..1..1..1. .1..1..1..1..1 %e A295210 ..1..1..0..0..0. .1..1..0..1..1. .0..1..0..0..1. .1..0..0..1..1 %e A295210 ..1..0..1..1..1. .1..0..0..1..1. .0..1..1..1..1. .1..1..1..1..0 %e A295210 ..1..1..1..0..1. .1..0..0..1..1. .0..1..0..0..0. .1..0..1..1..0 %e A295210 ..0..0..1..1..1. .1..1..0..1..0. .0..1..1..1..0. .1..1..0..0..0 %e A295210 ..0..0..1..1..1. .1..1..1..1..0. .0..1..1..1..0. .1..1..0..0..0 %Y A295210 Cf. A295213. %K A295210 nonn %O A295210 1,2 %A A295210 _R. H. Hardin_, Nov 17 2017