A268050 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.

4, 122, 9054, 1650058, 525124941, 262999737747, 190270786192101, 188077605422375047, 243772201296637313108, 401542086990450371906244

Offset: 1

Author

R. H. Hardin, Jan 25 2016

Keywords

• nonn

Comments

Row 3 of A268049.

Examples

			Some solutions for n=5
..0..0..1..2..1....0..0..1..2..2....0..0..1..1..0....0..0..1..2..2
..0..0..1..0..3....0..0..1..0..3....0..0..2..0..2....0..0..1..0..1
..3..4..1..2..4....1..1..0..3..0....1..2..2..3..4....3..4..1..5..3
		

Crossrefs

Cf. A268049.