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%I #5 Mar 31 2012 12:37:09
%S 37020,1590378,61165512,2308027074,86276125692,3216834301377,
%T 119812800012048,4461032943350559,166076221131178404,
%U 6182479233427589013,230149116908231727822,8567503992981854698782,318931886178234350522010
%N Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one
%C Column 5 of A206054
%H R. H. Hardin, <a href="/A206051/b206051.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..0..2..2..0..0....0..2..0..2..2..0....1..0..0..1..0..2....1..2..1..2..0..1
%e ..2..2..2..0..0..2....1..2..0..2..0..0....0..0..1..1..1..1....2..2..2..2..0..1
%e ..0..2..0..0..1..2....2..2..0..2..0..1....2..0..1..0..0..1....0..2..0..2..0..1
%e ..2..2..2..0..1..1....2..0..0..2..0..0....2..0..1..0..1..1....0..0..0..2..0..0
%e ..2..1..2..0..0..1....2..0..1..2..2..0....2..0..1..1..1..2....1..2..2..2..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 03 2012
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