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 A299611 #4 Feb 14 2018 07:14:29 %S A299611 8,95,63,322,1006,3286,13490,49047,183585,713699,2714170,10378456, %T A299611 39704472,151771262,581376350,2226003287,8517881481,32604243139, %U A299611 124809117768,477707469245,1828508432121,6999126323813,26790197380901 %N A299611 Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero. %C A299611 Column 7 of A299612. %H A299611 R. H. Hardin, <a href="/A299611/b299611.txt">Table of n, a(n) for n = 1..210</a> %e A299611 Some solutions for n=5 %e A299611 ..0..1..0..1..0..0..0. .0..0..0..1..1..1..0. .0..0..1..1..1..0..1 %e A299611 ..0..1..0..1..1..1..1. .1..0..0..0..0..0..0. .1..1..0..0..0..0..1 %e A299611 ..0..1..0..1..1..1..0. .1..0..0..0..0..1..1. .1..0..1..0..0..0..1 %e A299611 ..1..1..1..1..1..1..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0 %e A299611 ..0..0..1..1..0..0..1. .1..1..1..0..0..1..1. .1..1..0..0..1..1..1 %Y A299611 Cf. A299612. %K A299611 nonn %O A299611 1,1 %A A299611 _R. H. Hardin_, Feb 14 2018