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%I #5 Mar 31 2012 12:36:04
%S 85950,2594364,73704654,1983108841,56342354623,1583479136326,
%T 43674791825894,1227206096949087,34442516744766780,955566424195215926,
%U 26758623787941625854,750296625321555194450,20875762248134838402638
%N Number of (n+2)X4 0..2 arrays with each 3X3 subblock having a positive determinant
%C Column 2 of A186068
%H R. H. Hardin, <a href="/A186065/b186065.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for 6X4
%e ..0..1..0..0....0..1..0..0....0..1..0..0....0..1..0..0....0..1..0..0
%e ..0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0
%e ..2..0..0..1....1..0..0..1....2..0..0..1....1..0..0..2....2..0..0..1
%e ..0..1..0..0....1..1..0..1....1..2..1..1....0..1..2..0....1..1..2..0
%e ..1..1..1..2....2..1..1..0....1..2..2..2....0..0..1..1....1..0..2..1
%e ..1..2..0..2....2..1..0..2....2..2..1..2....2..1..2..1....1..1..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 11 2011
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