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%I #3 Jan 25 2016 10:53:35
%S 4,122,9054,1650058,525124941,262999737747,190270786192101,
%T 188077605422375047,243772201296637313108,401542086990450371906244
%N Number of 3Xn 0..n arrays with every repeated value in every row unequal to, and in every column equal to, the previous repeated value, and new values introduced in row-major sequential order.
%C Row 3 of A268049.
%e Some solutions for n=5
%e ..0..0..1..2..1....0..0..1..2..2....0..0..1..1..0....0..0..1..2..2
%e ..0..0..1..0..3....0..0..1..0..3....0..0..2..0..2....0..0..1..0..1
%e ..3..4..1..2..4....1..1..0..3..0....1..2..2..3..4....3..4..1..5..3
%Y Cf. A268049.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 25 2016
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