%I #3 Jan 24 2016 09:29:43
%S 3,96,7445,1396408,454238345,231327070236,169569975455042,
%T 169395686166997667,221468092160400373173,367444512792822698032517
%N Number of 3Xn 0..n arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.
%C Row 3 of A268009.
%e Some solutions for n=3
%e ..0..1..2....0..0..1....0..1..2....0..1..2....0..1..2....0..1..1....0..1..2
%e ..0..1..0....2..2..1....2..0..3....1..1..0....0..0..2....1..2..2....2..3..0
%e ..2..0..3....2..0..0....0..2..2....0..2..3....3..1..1....1..0..3....2..1..3
%Y Cf. A268009.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 24 2016