A223932 Number of n X 7 0..2 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing.

239, 10511, 142177, 1065625, 5773556, 26250443, 108796955, 427868778, 1623374603, 5968786086, 21245965257, 73014123464, 241654125566, 769129639555, 2353337396568, 6926814314231, 19640014398963, 53740631657012

Offset

1,1

Comments

Column 7 of A223933.

Links

R. H. Hardin, Table of n, a(n) for n = 1..39

Example

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

Crossrefs

Cf. A223933.

Sequence in context: A224261 A223917 A224189 * A224056 A224309 A224373

Adjacent sequences: A223929 A223930 A223931 * A223933 A223934 A223935

Keyword

nonn

Author

R. H. Hardin Mar 29 2013

Status

approved