A268106 - OEIS

%I #3 Jan 26 2016 12:20:42

%S 8,729,262144,232608375,427979206656,1422917069386176,

%T 7780188517552009728,65282814314072669856303,

%U 797471492064362985335311000,13607369559752757079941998010377

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

%C Row 3 of A268103.

%e Some solutions for n=5

%e ..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0

%e ..0..0..4..1..5....0..0..5..0..5....0..0..5..1..3....0..0..3..2..1

%e ..0..3..2..5..4....0..3..4..0..0....3..3..5..1..2....0..3..4..3..0

%Y Cf. A268103.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 26 2016