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 A281714 #6 May 12 2023 15:34:14 %S A281714 8,126,902,5781,37781,252867,1721319,11737418,80326035,550174620, %T A281714 3770023291,25852784618,177312917355,1216400299609,8345678370420, %U A281714 57264137432807,392941243651302,2696425337315332,18503762711566377 %N A281714 Number of n X 7 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. %C A281714 Column 7 of A281715. %H A281714 R. H. Hardin, <a href="/A281714/b281714.txt">Table of n, a(n) for n = 1..210</a> %e A281714 Some solutions for n=4 %e A281714 ..0..0..1..1..1..0..0. .0..0..0..1..1..1..1. .0..0..1..0..1..0..0 %e A281714 ..0..0..0..1..1..0..0. .1..1..1..0..0..0..0. .0..1..0..1..0..1..0 %e A281714 ..0..0..1..1..0..1..0. .1..1..1..0..0..0..0. .1..0..1..0..1..0..1 %e A281714 ..1..1..0..0..1..0..1. .0..0..0..1..1..1..1. .1..1..0..1..0..1..0 %Y A281714 Cf. A281715. %K A281714 nonn %O A281714 1,1 %A A281714 _R. H. Hardin_, Jan 28 2017