A266128 Number of nX5 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.

9, 149, 278, 3851, 62104, 326145, 4176690, 50677045, 367191341, 4343077168, 47557102126, 393190838218, 4413622529512, 46442066137513, 412349942225648, 4457850641709751, 46051121628392952, 427183303899673724

Offset

1,1

Comments

Column 5 of A266131.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Cf. A266131.

Sequence in context: A304312 A361066 A050580 * A183439 A296017 A218350

Adjacent sequences: A266125 A266126 A266127 * A266129 A266130 A266131

Keyword

nonn

Author

R. H. Hardin, Dec 21 2015

Status

approved