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%I #5 Mar 31 2012 12:36:00
%S 3745509,398829619,40374310135,3941878848972,398138249828378,
%T 39962151945685497,3975989966207625128,398772531392899582485,
%U 39987193655119991432064,3990964696857966996964418
%N Number of (n+2)X4 0..3 arrays with each 3X3 subblock having a positive determinant
%C Column 2 of A184649
%H R. H. Hardin, <a href="/A184647/b184647.txt">Table of n, a(n) for n = 1..43</a>
%e Some solutions for 6X4
%e ..0..0..2..0....0..0..2..0....0..0..2..0....0..0..2..0....0..0..2..0
%e ..1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1
%e ..0..1..0..0....0..1..0..0....0..1..0..0....0..1..0..0....0..1..0..0
%e ..1..0..1..0....0..0..1..1....1..0..1..0....0..0..1..2....2..0..1..0
%e ..2..1..1..3....1..1..0..3....3..1..0..1....1..0..0..3....2..1..0..3
%e ..1..3..1..3....0..1..1..2....1..2..2..0....0..2..2..3....2..2..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 18 2011
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