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 A228388 #7 Sep 01 2013 18:28:51 %S A228388 8,70,963,11449,143072,1755243,21683149,267157140,3294926929, %T A228388 40621769739,500881862476,6175719012200,76146337618146, %U A228388 938873253971283,11576206633106083,142733217148402101,1759883977929944820 %N A228388 Number of nX6 binary arrays with top left value 1 and no two ones adjacent horizontally or vertically. %C A228388 Column 6 of A228390 %H A228388 R. H. Hardin, <a href="/A228388/b228388.txt">Table of n, a(n) for n = 1..210</a> %F A228388 Empirical: a(n) = 8*a(n-1) +62*a(n-2) -78*a(n-3) -375*a(n-4) +300*a(n-5) +486*a(n-6) -385*a(n-7) -30*a(n-8) +52*a(n-9) -2*a(n-10) -a(n-11) %e A228388 Some solutions for n=4 %e A228388 ..1..0..0..0..1..0....1..0..0..0..1..0....1..0..1..0..0..1....1..0..0..0..0..1 %e A228388 ..0..0..0..1..0..0....0..0..0..1..0..1....0..0..0..0..1..0....0..1..0..1..0..0 %e A228388 ..0..0..0..0..0..0....1..0..1..0..0..0....0..0..0..0..0..0....0..0..1..0..1..0 %e A228388 ..1..0..0..0..0..0....0..0..0..1..0..1....1..0..0..1..0..0....0..0..0..1..0..1 %K A228388 nonn %O A228388 1,1 %A A228388 _R. H. Hardin_ Aug 21 2013