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 A268779 #4 Feb 13 2016 09:47:24 %S A268779 41,343,3354,27531,224960,1755113,13493468,101738555,758303322, %T A268779 5590121407,40870469356,296640792103,2140108184248,15358691305417, %U A268779 109723986174308,780748875032869,5535897115345958,39128843941494495 %N A268779 Number of nX6 binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two no more than once. %C A268779 Column 6 of A268781. %H A268779 R. H. Hardin, <a href="/A268779/b268779.txt">Table of n, a(n) for n = 1..210</a> %F A268779 Empirical: a(n) = 6*a(n-1) +51*a(n-2) -214*a(n-3) -1074*a(n-4) +2018*a(n-5) +7713*a(n-6) -10572*a(n-7) -22926*a(n-8) +30116*a(n-9) +25283*a(n-10) -32400*a(n-11) -15148*a(n-12) +15184*a(n-13) +5660*a(n-14) -2688*a(n-15) -1024*a(n-16) %e A268779 Some solutions for n=4 %e A268779 ..0..0..0..0..0..0. .0..0..0..1..1..0. .0..0..0..0..0..0. .0..0..0..0..0..0 %e A268779 ..0..0..1..0..0..1. .1..0..0..0..0..0. .0..1..0..1..0..1. .0..0..0..1..0..0 %e A268779 ..1..0..0..0..0..0. .0..0..0..0..0..0. .0..0..0..0..0..0. .0..0..0..0..0..1 %e A268779 ..0..0..1..0..1..0. .1..0..0..0..1..0. .1..0..0..0..1..0. .1..0..1..0..0..0 %Y A268779 Cf. A268781. %K A268779 nonn %O A268779 1,1 %A A268779 _R. H. Hardin_, Feb 13 2016