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%I #3 Nov 03 2013 10:53:33
%S 0,1840,38000,18937480,1782634608,417868659864,61990953794520,
%T 11645089669025104,1940181166627241952,343673876486436908888,
%U 59011109416261093990112,10294673560727171622076712
%N Number of nX6 0..2 arrays x(i,j) with each element horizontally, 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 A231080
%e Some solutions for n=3
%e ..0..1..2..2..1..2....0..1..2..1..0..3....0..1..2..0..1..2....0..1..2..0..1..2
%e ..2..3..2..1..3..0....0..3..2..1..2..3....2..3..0..0..3..0....2..3..0..2..3..0
%e ..2..1..0..2..1..0....2..1..2..1..0..1....2..1..3..2..1..2....2..1..2..0..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 03 2013
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