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%I #5 Mar 31 2012 12:37:10
%S 4596072,1966171084,848327900384,365468694266436,157233431036489148,
%T 67595116900832029672,29048689240586916141284,
%U 12481384538302527859923440,5362463708438175275453119020,2303828616153300698234374000660
%N Number of (n+1)X7 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two
%C Column 6 of A206197
%H R. H. Hardin, <a href="/A206195/b206195.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..2..0..0..1..0..3..2....3..1..3..2..0..2..2....2..2..0..1..2..0..3
%e ..3..2..1..2..1..0..3....3..2..0..3..1..0..3....0..3..1..0..2..1..0
%e ..0..3..2..0..2..1..0....0..3..2..1..2..1..0....1..0..2..1..3..2..1
%e ..1..0..3..1..3..2..1....3..0..3..2..3..2..1....3..1..3..2..0..3..2
%e ..3..1..0..2..1..3..2....3..1..0..3..1..0..2....2..1..0..3..1..0..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 04 2012
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