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%I #4 Oct 13 2013 16:27:28
%S 0,522,64838,15075834,2905031942,575915716590,113395635811566,
%T 22307089878854146,4393204701131698706,865095876749918611674,
%U 170331251165790970494850,33537951155031500480807238
%N Number of nX6 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero
%C Column 6 of A230250
%H R. H. Hardin, <a href="/A230249/b230249.txt">Table of n, a(n) for n = 1..14</a>
%e Some solutions for n=3
%e ..0..1..0..3..2..1....0..0..1..0..1..0....0..1..0..3..2..1....0..1..0..2..3..2
%e ..1..2..3..2..3..0....1..2..2..3..2..3....3..2..0..3..1..0....1..2..1..1..0..1
%e ..0..3..2..1..0..3....0..3..2..1..1..0....2..1..1..2..0..3....2..3..0..0..3..2
%K nonn
%O 1,2
%A _R. H. Hardin_, Oct 13 2013