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 A231854 #6 Jun 02 2025 08:48:21 %S A231854 144,11159,11529929,10582191628,9669634711179,8834385550338284, %T A231854 8071247819035667716,7374031793933846572072,6737043309310397086712007, %U A231854 6155079609468787512765196641,5623387483230350498450778517294 %N A231854 Number of nX7 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 A231854 Column 7 of A231855 %H A231854 R. H. Hardin, <a href="/A231854/b231854.txt">Table of n, a(n) for n = 1..210</a> %e A231854 Some solutions for n=2 %e A231854 ..0..2..1..0..0..1..2....0..0..0..0..0..0..0....0..2..2..1..0..2..2 %e A231854 ..2..1..0..0..1..1..1....0..0..1..0..0..1..2....1..1..1..0..2..2..2 %K A231854 nonn %O A231854 1,1 %A A231854 _R. H. Hardin_, Nov 14 2013