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 A279267 #4 Dec 08 2016 21:06:44 %S A279267 15,120,1603,21882,283450,3490152,42093113,498160278,5812405127, %T A279267 67071788240,766923320987,8702848263928,98122997204330, %U A279267 1100209100745782,12277125522368779,136425808025932376,1510393582783303438 %N A279267 Number of nX7 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. %C A279267 Column 7 of A279268. %H A279267 R. H. Hardin, <a href="/A279267/b279267.txt">Table of n, a(n) for n = 1..173</a> %e A279267 Some solutions for n=4 %e A279267 ..0..1..0..1..0..1..1. .0..1..0..0..1..0..1. .0..1..0..1..1..0..0 %e A279267 ..1..0..1..1..0..0..0. .0..1..1..1..0..0..1. .1..0..1..0..0..1..1 %e A279267 ..1..0..1..0..1..1..1. .1..0..0..1..0..1..0. .0..0..1..1..0..0..0 %e A279267 ..0..1..0..1..0..1..0. .0..1..0..1..0..0..1. .1..1..0..0..1..0..1 %Y A279267 Cf. A279268. %K A279267 nonn %O A279267 1,1 %A A279267 _R. H. Hardin_, Dec 08 2016