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 A282883 #4 Feb 24 2017 07:48:41 %S A282883 12,416,13062,286920,6296324,128768496,2561487246,49811090624, %T A282883 951678283294,17942875499666,334648098052706,6186474258515070, %U A282883 113524128817623768,2070195868615817640,37549019984769514068 %N A282883 Number of nX6 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element. %C A282883 Column 6 of A282885. %H A282883 R. H. Hardin, <a href="/A282883/b282883.txt">Table of n, a(n) for n = 1..210</a> %e A282883 Some solutions for n=3 %e A282883 ..0..0..1..0..1..0. .0..0..1..1..1..0. .0..0..0..1..0..0. .1..0..1..0..0..1 %e A282883 ..0..1..0..0..0..1. .1..0..0..0..0..0. .0..0..1..0..0..0. .0..1..0..0..0..0 %e A282883 ..1..0..1..0..0..1. .0..1..0..1..0..0. .0..1..0..0..0..0. .1..0..0..0..1..0 %Y A282883 Cf. A282885. %K A282883 nonn %O A282883 1,1 %A A282883 _R. H. Hardin_, Feb 24 2017