A267972 Number of nX4 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.

250, 62500, 12067722, 2208460532, 370962601314, 58977586280183, 8920181825287255, 1295459314730053526, 181620283990314798496, 24698703052360112375559, 3269943855458863743367027

Offset: 1

Author

R. H. Hardin, Jan 23 2016

Keywords

• nonn

Comments

Column 4 of A267974.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..42

Crossrefs

Cf. A267974.