%I #4 Nov 09 2013 06:45:47
%S 2,15,340,33659,9796477,9081622778,23670993512633,180549324060008725,
%T 3898800271416067773477
%N Number of (n+1)X(n+1) 0..3 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..3 introduced in row major order
%C Diagonal of A231451
%e Some solutions for n=4
%e ..0..0..1..1..1....0..0..0..0..0....0..0..0..0..0....0..0..1..1..1
%e ..0..1..0..0..2....1..1..0..0..0....1..1..1..1..2....0..1..1..1..1
%e ..1..0..0..2..1....1..2..2..2..0....1..1..1..2..2....1..1..1..0..0
%e ..2..2..2..1..1....2..2..2..0..2....2..2..2..1..1....1..1..0..0..1
%e ..3..3..3..3..3....0..0..0..2..2....2..2..1..1..1....0..0..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 09 2013
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