%I #5 Mar 31 2012 12:37:10
%S 81,7313,1782191,1827047303,7626209039519,162241662044855141
%N Number of (n+1)X(n+1) 0..2 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing
%C Diagonal of A206223
%e Some solutions for n=4
%e ..1..1..0..2..0....2..2..1..1..2....2..2..1..2..0....1..0..0..2..2
%e ..0..0..0..0..0....0..0..0..0..0....2..1..0..0..0....0..0..0..0..0
%e ..0..2..1..2..0....1..0..0..2..1....2..0..1..0..1....2..2..1..0..1
%e ..0..0..0..0..0....0..0..0..1..1....0..0..2..0..2....0..0..0..0..2
%e ..0..0..1..1..0....0..1..0..1..2....0..0..1..0..2....0..0..1..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 04 2012
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