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 A232284 #6 Jul 23 2025 07:15:00 %S A232284 81,341,18117,604133,17145989,450287974,13094741315,395698652441, %T A232284 11688008077057,337938770928273,9800299647018934,286640525559424646, %U A232284 8393401125409013965,245088532914340963777,7148359187516040367173 %N A232284 Number of 4Xn 0..2 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors. %C A232284 Row 4 of A232281 %H A232284 R. H. Hardin, <a href="/A232284/b232284.txt">Table of n, a(n) for n = 1..210</a> %e A232284 Some solutions for n=3 %e A232284 ..0..0..1....0..1..0....2..1..2....0..0..1....1..2..0....1..0..0....1..0..1 %e A232284 ..2..0..0....2..0..1....1..0..0....0..1..2....0..0..1....0..2..1....0..0..0 %e A232284 ..0..2..2....1..2..0....0..0..0....2..0..2....1..0..0....0..0..1....1..2..0 %e A232284 ..0..0..0....1..0..0....0..2..1....0..0..0....0..2..2....2..0..0....1..0..0 %K A232284 nonn %O A232284 1,1 %A A232284 _R. H. Hardin_, Nov 22 2013