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%I #5 Mar 31 2012 12:36:04
%S 81,11610,9546820,44035074450,1150465902394838
%N Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum
%C Diagonal of A185856
%e Some solutions for 3X3
%e ..2..1..2....1..0..1....1..1..0....2..0..0....0..0..0....1..0..1....0..0..1
%e ..0..2..0....2..2..2....2..0..1....0..1..0....1..0..1....0..2..1....2..0..2
%e ..0..1..2....2..0..1....1..1..1....1..1..0....0..1..1....0..0..2....1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 05 2011