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%I #7 Oct 09 2015 04:19:55
%S 151824,489984,3227968,41013960,639426584,10795687000,186979308144,
%T 3289591226152,58404502956504,1043705190013648,18728820730088272,
%U 337062306215296488,6077539808376264136,109725805552567745304
%N Number of 5X(n+1) 0..3 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
%C Row 4 of A205659.
%H R. H. Hardin, <a href="/A205662/b205662.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4:
%e ..2..3..3..3..3....1..0..0..0..0....1..3..3..0..1....1..3..2..1..1
%e ..2..3..0..3..2....3..3..3..3..3....2..2..3..0..1....2..1..0..3..2
%e ..3..0..1..0..3....3..3..3..3..3....0..3..1..2..0....2..1..0..3..0
%e ..3..0..1..0..3....0..1..2..3..1....1..3..1..2..0....3..1..2..3..0
%e ..2..3..0..3..0....3..3..3..0..2....0..0..2..1..2....2..1..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 30 2012
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