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%I #4 Oct 30 2013 20:32:26
%S 0,44,130,734,4350,29446,201592,1388526,9649244,67351066,471449136,
%T 3305467604,23199674400,162919918906,1144420036726,8039945941588,
%U 56486945293530,396878171736174,2788524347614420,19592806908395710
%N Number of nX6 0..3 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 4 and at least one element with value (x(i,j)-1) mod 4, no adjacent elements equal, and upper left element zero
%C Column 6 of A230831
%H R. H. Hardin, <a href="/A230829/b230829.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..1..3..1..3..0....0..1..2..1..3..0....0..3..0..3..0..1....0..1..0..1..0..3
%e ..3..2..0..2..1..2....3..0..3..0..2..1....1..2..1..2..3..2....3..2..3..2..1..2
%e ..0..3..1..3..0..3....2..1..2..1..3..0....3..0..3..0..1..0....1..0..1..3..0..3
%e ..1..2..0..2..1..0....3..0..3..0..2..1....1..2..1..3..2..3....3..2..0..2..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_, Oct 30 2013
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