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 A232133 #6 Apr 17 2022 20:51:01 %S A232133 1140,169692,25364480,3795674252,568008109436,85000031249096, %T A232133 12719895449388800,1903478569962529436,284847519195214207740, %U A232133 42626226776754332086840,6378834593164563425802400 %N A232133 Number of (n+1) X (4+1) 0..2 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order. %C A232133 Column 4 of A232137. %H A232133 R. H. Hardin, <a href="/A232133/b232133.txt">Table of n, a(n) for n = 1..210</a> %F A232133 Empirical: a(n) = 191*a(n-1) -6912*a(n-2) +115408*a(n-3) -1111971*a(n-4) +6750425*a(n-5) -26789260*a(n-6) +69724040*a(n-7) -116179712*a(n-8) +120732608*a(n-9) -77737728*a(n-10) +30931968*a(n-11) -7383040*a(n-12) +917504*a(n-13) -32768*a(n-14). %e A232133 Some solutions for n=1 %e A232133 ..0..1..2..1..2....0..1..0..1..2....0..1..0..1..1....0..1..2..0..2 %e A232133 ..1..2..0..2..1....1..2..0..1..0....2..0..2..0..2....2..1..0..1..2 %Y A232133 Cf. A232137. %K A232133 nonn %O A232133 1,1 %A A232133 _R. H. Hardin_, Nov 19 2013