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%I #4 Jan 26 2016 07:07:19
%S 8,192,4608,98830,2028304,40109966,774613334,14704721628,275789779530,
%T 5127593717314,94736825794120,1742377742866910,31939206633903848,
%U 584056036861579428,10661467774391724330,194364960910265681074
%N Number of 3Xn 0..2 arrays with every repeated value in every row not one larger and in every column one larger mod 3 than the previous repeated value, and upper left element zero.
%C Row 3 of A268092.
%H R. H. Hardin, <a href="/A268095/b268095.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..2..1..0....0..2..0..2....0..2..0..2....0..1..2..1....0..2..0..0
%e ..2..2..2..2....2..0..2..0....0..0..0..0....0..0..0..2....2..1..2..2
%e ..0..1..0..0....2..1..0..2....1..1..2..1....2..2..2..2....1..1..1..1
%Y Cf. A268092.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 26 2016
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