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%I #5 Mar 31 2012 12:37:07
%S 26672819,23044169753,20808476912916,18792440902201504,
%T 16933907492912073872,15245666610881157061902,
%U 13716254602126712440880420,12336975902231287097446944284,11094395430478243340473622599662
%N Number of (n+1)X8 0..3 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors
%C Column 7 of A205768
%H R. H. Hardin, <a href="/A205767/b205767.txt">Table of n, a(n) for n = 1..21</a>
%e Some solutions for 5X5
%e ..3..1..2..3..2..2..0..1....3..2..3..0..3..3..0..1....1..1..1..0..2..3..3..0
%e ..1..2..1..1..0..3..1..0....1..3..0..2..1..0..2..0....1..2..1..2..2..2..3..3
%e ..0..1..3..2..1..0..2..1....2..0..2..1..3..1..3..2....2..2..2..2..3..2..2..3
%e ..1..2..0..3..2..1..3..2....2..1..0..2..0..2..1..3....1..2..0..2..2..2..3..3
%e ..3..0..2..1..3..2..0..3....3..2..1..3..1..3..2..0....2..2..2..2..1..2..2..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 30 2012
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