A265984 Number of 4Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.

1, 809, 13894, 282056, 40743954, 3698768651, 185874780351, 12575751772562, 1085132072879774, 80030985885837392, 5555437439270864557, 416136624561279441861, 31632055622516039033176, 2327745994261256565541305

Offset

1,2

Comments

Row 4 of A265981.

Links

R. H. Hardin, Table of n, a(n) for n = 1..134

Example

Some solutions for n=3
..1..2..0....0..2..0....1..1..2....0..0..0....1..0..0....0..4..0....2..1..0
..3..0..2....2..0..2....3..0..0....3..2..2....2..1..1....0..0..2....1..0..3
..3..1..3....2..0..2....0..0..0....3..0..3....1..6..1....0..0..2....1..1..3
..1..0..0....1..2..1....0..0..2....1..1..0....0..0..1....1..4..0....0..1..2

Crossrefs

Cf. A265981.

Sequence in context: A273811 A252028 A031599 * A332848 A160561 A346716

Adjacent sequences: A265981 A265982 A265983 * A265985 A265986 A265987

Keyword

nonn

Author

R. H. Hardin, Dec 19 2015

Status

approved