A265985 Number of 5Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.

1, 5274, 262258, 8935989, 5155545324, 1978988798923, 298625879496209, 56895408888434760, 18329892680201445077, 5019263218841920734429

Offset

1,2

Comments

Row 5 of A265981.

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Cf. A265981.

Sequence in context: A251901 A274361 A223494 * A234994 A223341 A270798

Adjacent sequences: A265982 A265983 A265984 * A265986 A265987 A265988

Keyword

nonn

Author

R. H. Hardin, Dec 19 2015

Status

approved