A266066 Number of nX6 integer arrays with each element equal to the number of horizontal, vertical, diagonal and antidiagonal neighbors exactly one smaller than itself.

16, 1057, 1750, 25663, 1066148, 11211992, 156829155, 3678276863, 55555604963, 924058858458, 17716431261668, 297095816076323

Offset

1,1

Comments

Column 6 of A266067.

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Cf. A266067.

Sequence in context: A348862 A029701 A281984 * A232571 A203096 A210822

Adjacent sequences: A266063 A266064 A266065 * A266067 A266068 A266069

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved