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%I #4 Nov 01 2013 17:32:02
%S 0,22428,2772906,1509045552,635678359988,270258566366420,
%T 115824906242444524,49485565220035538028,21156805616540924557940,
%U 9044496465346856530533020,3866495604500081195895769776
%N Number of nX6 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3 and at least one element with value (x(i,j)-1) mod 3, and upper left element zero
%C Column 6 of A230926
%H R. H. Hardin, <a href="/A230924/b230924.txt">Table of n, a(n) for n = 1..117</a>
%e Some solutions for n=3
%e ..0..0..0..0..0..0....0..0..0..1..2..0....0..0..0..1..2..0....0..0..0..0..0..0
%e ..1..2..1..0..2..1....2..1..1..2..1..0....2..1..0..2..0..1....2..1..2..0..1..2
%e ..0..1..2..1..1..0....0..2..0..2..2..2....0..0..1..0..0..2....1..0..0..2..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 01 2013
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