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 A231859 #7 May 21 2021 14:20:57 %S A231859 81,2584,234336,17726611,1454768048,118292347982,9669634711179, %T A231859 790105900385455,64578303092773705,5278241081510497850, %U A231859 431415634830501378047,35261742427088235238529,2882118653532747073628155 %N A231859 Number of 5 X n 0..2 arrays with no element having a strict majority of its horizontal and antidiagonal neighbors equal to itself plus one mod 3, with upper left element zero (rock paper and scissors drawn positions). %C A231859 Row 5 of A231855. %H A231859 R. H. Hardin, <a href="/A231859/b231859.txt">Table of n, a(n) for n = 1..210</a> %e A231859 Some solutions for n=3 %e A231859 ..0..0..0....0..0..0....0..0..1....0..0..0....0..0..0....0..0..1....0..0..0 %e A231859 ..1..0..0....1..2..1....0..2..1....1..0..0....2..1..0....0..2..1....0..1..1 %e A231859 ..2..2..0....2..0..0....2..0..2....2..2..2....1..0..0....0..0..0....0..0..0 %e A231859 ..1..0..2....2..2..2....1..2..2....0..1..2....0..1..2....0..0..1....1..0..0 %e A231859 ..0..1..1....2..2..2....2..2..2....1..1..1....1..0..0....0..2..2....0..0..1 %Y A231859 Cf. A231855. %K A231859 nonn %O A231859 1,1 %A A231859 _R. H. Hardin_, Nov 14 2013