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%I #5 Mar 31 2012 12:36:00
%S 150,67330,266060160,11348244616180,4705518067315949795,
%T 19869188673828370548366580,837185450907978354702239657652981
%N Number of (n+1)X(n+1) 0..3 arrays with no 2X2 subblock summing to less than 6
%C Diagonal of A184673
%e Some solutions for 3X3
%e ..3..3..1....1..0..1....1..2..2....1..3..3....3..1..3....1..1..3....3..1..2
%e ..0..3..2....3..3..2....2..1..3....1..2..2....2..3..3....3..3..2....3..2..3
%e ..3..1..2....3..3..2....2..1..3....2..1..1....1..2..3....2..3..3....3..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 19 2011
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