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%I #5 Mar 31 2012 12:37:30
%S 44948,5719838,706149734,89046135210,11197401806412,1410846309824300,
%T 177700386195973368,22387171143190946674,2820279543005322791600,
%U 355303174688921476145954,44761475493150370182553502
%N Half the number of (n+1)X5 0..3 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference
%C Column 4 of A209787
%H R. H. Hardin, <a href="/A209783/b209783.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..1..3..2..0....3..0..1..0..0....3..1..1..2..1....1..1..3..2..3
%e ..0..1..1..1..1....3..0..1..1..2....1..1..2..2..2....0..1..1..1..1
%e ..0..0..2..3..1....0..0..0..0..0....3..1..0..0..1....2..1..2..3..1
%e ..3..0..2..1..1....0..3..0..1..1....1..1..1..2..2....1..1..1..1..1
%e ..3..0..0..0..0....2..1..2..2..1....3..1..3..3..1....0..2..0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 13 2012
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