cp's OEIS Frontend

A231860 Number of 6Xn 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).

%I A231860 #6 Jun 02 2025 08:48:49
%S A231860 243,17711,4426924,870478586,189801034186,40798265169064,
%T A231860 8834385550338284,1911341202615913712,413723710096478651481,
%U A231860 89550243967713250438476,19383621807575250074991743
%N A231860 Number of 6Xn 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 A231860 Row 6 of A231855
%H A231860 R. H. Hardin, <a href="/A231860/b231860.txt">Table of n, a(n) for n = 1..210</a>
%e A231860 Some solutions for n=2
%e A231860 ..0..0....0..0....0..0....0..2....0..0....0..0....0..0....0..0....0..0....0..0
%e A231860 ..1..2....2..2....1..1....2..0....2..2....0..0....1..2....2..2....1..1....2..1
%e A231860 ..2..0....0..1....2..0....0..0....2..0....1..2....0..0....0..1....0..0....1..0
%e A231860 ..0..0....1..1....1..1....1..1....1..0....2..2....0..1....1..2....2..1....0..0
%e A231860 ..2..2....2..2....2..2....1..2....0..2....0..2....1..0....0..0....0..0....0..2
%e A231860 ..2..2....0..1....2..2....0..0....2..2....1..1....2..2....2..2....1..2....2..2
%K A231860 nonn
%O A231860 1,1
%A A231860 _R. H. Hardin_, Nov 14 2013