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 A282790 #4 Feb 21 2017 08:45:29 %S A282790 26,736,38027,832218,22998587,545174028,12713143876,292288389872, %T A282790 6555156469894,145619095090322,3197415688277735,69595512931794512, %U A282790 1504085477252415247,32301337050939080872,690041423059410095352 %N A282790 Number of nX7 0..1 arrays with no 1 equal to more than one of its king-move neighbors, with the exception of exactly one element. %C A282790 Column 7 of A282791. %H A282790 R. H. Hardin, <a href="/A282790/b282790.txt">Table of n, a(n) for n = 1..210</a> %e A282790 Some solutions for n=3 %e A282790 ..1..0..1..1..0..1..0. .0..0..0..1..0..0..0. .1..0..0..0..1..0..0 %e A282790 ..0..0..0..0..0..0..1. .1..0..0..0..1..0..0. .0..0..0..1..0..0..0 %e A282790 ..0..0..1..0..0..0..1. .1..0..1..0..1..0..0. .0..1..0..0..1..0..1 %Y A282790 Cf. A282791. %K A282790 nonn %O A282790 1,1 %A A282790 _R. H. Hardin_, Feb 21 2017