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%I #5 Mar 31 2012 12:35:59
%S 140,1494,8936,38642,207470,890982,3651098
%N 1/12 the number of (n+2)X(n+2) 0..2 arrays with each 3X3 subblock containing three of each value
%C Diagonal of A184386
%e Some solutions with a(1,1)=0 for 4X4
%e ..0..1..2..0....0..2..2..0....0..2..1..0....0..1..2..0....0..2..0..2
%e ..1..2..2..1....2..1..0..2....0..0..1..1....0..1..0..0....2..0..2..0
%e ..0..0..1..0....0..1..1..0....1..2..2..0....2..2..1..2....1..1..1..1
%e ..1..2..0..1....2..2..0..2....1..0..2..1....0..1..2..0....0..0..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 12 2011
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