A266037 Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself.

1, 1248, 45361, 2482216, 576560236, 82171346791, 9605729633909, 1316405563528439, 185250991700719262, 25126036917368611969, 3413515333835032352093, 466571635798167872341403

Offset

1,2

Comments

Row 5 of A266033.

Links

R. H. Hardin, Table of n, a(n) for n = 1..163

Example

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

Crossrefs

Cf. A266033.

Sequence in context: A047629 A221012 A233167 * A233179 A224435 A233261

Adjacent sequences: A266034 A266035 A266036 * A266038 A266039 A266040

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved