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%I #5 Mar 31 2012 12:36:04
%S 256,130944,590014464,23071825269024,7847745868957709536,
%T 23221991267256751327588320,597768284764394563452665098460064
%N Number of (n+1)X(n+1) 0..3 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace
%C Diagonal of A185933
%e Some solutions for 3X3
%e ..0..2..3....0..0..0....1..0..0....0..1..1....0..1..3....2..3..1....1..2..3
%e ..2..3..2....0..0..2....0..2..1....0..3..3....1..3..1....3..1..2....2..3..3
%e ..1..3..3....0..3..0....2..1..3....0..1..3....2..1..1....3..3..0....1..0..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 06 2011
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