A267963 Number of nX4 0..2 arrays with every repeated value in every row and column greater than the previous repeated value.

63, 3969, 157182, 5843562, 185900905, 5520230601, 151596664089, 3948855568663, 97889332200024, 2332332672746881, 53631396879772976, 1196249503631460096, 25965520951599991001, 550166212967293315266, 11406213718800127365141

Offset: 1

Author

R. H. Hardin, Jan 22 2016

Keywords

• nonn

Comments

Column 4 of A267966.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..186

Crossrefs

Cf. A267966.