A223849 Number of nX7 0..3 arrays with rows and columns unimodal

1163, 1352569, 570145144, 106061178908, 10609537390768, 655695544507798, 27578655986218632, 846185728339283486

Offset

1,1

Comments

Column 7 of A223850

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A224203 A223761 A223875 * A223800 A244428 A221350

Adjacent sequences: A223846 A223847 A223848 * A223850 A223851 A223852

Keyword

nonn

Author

R. H. Hardin Mar 27 2013

Status

approved