%I #5 Mar 31 2012 12:37:07
%S 43155,1712907,63696738,2360853939,87381878025,3239997622134,
%T 120298113709833,4471201485225354,166289278322725080,
%U 6186943327319274234,230242651040166965328,8569463770509613976787,318972948487631198705376
%N Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock the same
%C Column 5 of A205909
%H R. H. Hardin, <a href="/A205906/b205906.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..2..1..0..1..1..1....1..1..0..0..1..2....2..1..2..2..1..2....0..1..2..1..2..0
%e ..0..1..0..1..2..1....2..0..0..1..1..1....0..2..1..0..2..0....1..2..1..2..0..1
%e ..0..0..0..1..1..1....2..2..0..1..0..0....1..0..2..1..0..1....1..0..2..0..1..2
%e ..0..2..0..0..0..0....0..2..0..0..0..1....2..1..0..2..1..0....0..1..0..1..2..1
%e ..1..2..2..0..2..0....2..2..0..2..0..1....1..2..1..0..2..1....1..2..1..0..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 01 2012