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 A231662 #6 Jul 23 2025 06:37:16 %S A231662 292,53813,17962078,5175246459,1304771142134,344368908016123, %T A231662 92942728755412088,24824481518301027324,6607709887190748201068, %U A231662 1762843521573188604964896,470500753688617535877145830 %N A231662 Number of nX7 0..2 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors. %C A231662 Column 7 of A231663 %H A231662 R. H. Hardin, <a href="/A231662/b231662.txt">Table of n, a(n) for n = 1..98</a> %e A231662 Some solutions for n=2 %e A231662 ..2..2..0..2..1..1..1....2..0..0..0..2..2..1....1..1..0..0..2..0..0 %e A231662 ..2..0..0..2..1..1..1....0..0..0..2..2..1..1....2..0..0..1..0..0..1 %K A231662 nonn %O A231662 1,1 %A A231662 _R. H. Hardin_, Nov 12 2013