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%I #3 Jan 24 2016 09:18:21
%S 4,122,11051,1880990,555258347,256785961187,172734549522161,
%T 159978813272172457,195695804013150974073,306159594755630395108860,
%U 597115754061736885180703542
%N Number of 3Xn 0..n arrays with every repeated value in every row and column equal to the previous repeated value, and new values introduced in row-major sequential order.
%C Row 3 of A268003.
%e Some solutions for n=3
%e ..0..0..1....0..0..1....0..0..1....0..1..2....0..1..0....0..1..1....0..1..2
%e ..0..2..3....2..0..2....0..2..3....3..0..2....2..1..1....1..2..3....0..1..0
%e ..2..0..1....3..2..2....3..0..3....2..1..3....0..0..3....1..1..0....0..0..0
%Y Cf. A268003.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 24 2016
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