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Number of 3Xn 0..n arrays with every repeated value in every row greater than, and every column greater than or equal to, the previous repeated value.
0

%I #3 Jan 29 2016 07:37:22

%S 8,729,216000,185193000,337153536000,1125058699232216,

%T 6206699397581803008,52644642506757331562232,

%U 650274909835389362799561000,11215805818364638436336901795648

%N Number of 3Xn 0..n arrays with every repeated value in every row greater than, and every column greater than or equal to, the previous repeated value.

%C Row 3 of A268249.

%e Some solutions for n=2

%e ..0..1....1..1....0..0....2..0....0..0....2..2....2..1....1..1....0..2....0..1

%e ..1..0....1..1....0..0....0..2....0..1....1..0....1..1....2..0....0..2....0..1

%e ..1..1....0..0....1..1....0..0....1..2....1..0....1..2....1..0....2..1....1..2

%Y Cf. A268249.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 29 2016