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

1,1

Comments

Column 4 of A267966.

Links

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

Example

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

Crossrefs

Cf. A267966.

Sequence in context: A203457 A258684 A180926 * A268028 A194484 A195620

Adjacent sequences: A267960 A267961 A267962 * A267964 A267965 A267966

Keyword

nonn

Author

R. H. Hardin, Jan 22 2016

Status

approved