A268248 Number of nX4 0..4 arrays with every repeated value in every row greater than, and every column greater than or equal to, the previous repeated value.

570, 324900, 185193000, 98956027822, 50740994294843, 25094770808231271, 12036028524394985335, 5621452214452374028388, 2565187035327423790344235, 1146743647158206462853356328, 503335984976361363075982965598

Offset

1,1

Comments

Column 4 of A268249.

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

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

Crossrefs

Cf. A268249.

Sequence in context: A074907 A231140 A268203 * A246229 A073036 A020381

Adjacent sequences: A268245 A268246 A268247 * A268249 A268250 A268251

Keyword

nonn

Author

R. H. Hardin, Jan 29 2016

Status

approved