A266307 Number of nX3 arrays containing 3 copies of 0..n-1 with no element 1 greater than its west neighbor modulo n and the upper left element equal to 0.

1, 1, 39, 8190, 3264584, 2357929910, 2805027363620, 5125417483461520, 13647329614464753200

Offset

1,3

Comments

Column 3 of A266309.

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Cf. A266309.

Sequence in context: A323688 A266453 A279116 * A210327 A174765 A115462

Adjacent sequences: A266304 A266305 A266306 * A266308 A266309 A266310

Keyword

nonn

Author

R. H. Hardin, Dec 26 2015

Status

approved