A266308 Number of nX4 arrays of permutations of 4 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, 265, 442285, 1935720551, 18647592370365, 346767829206699720, 11380449914002871787995

Offset

1,3

Comments

Column 4 of A266309.

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Cf. A266309.

Sequence in context: A023043 A211719 A210120 * A278141 A091676 A061662

Adjacent sequences: A266305 A266306 A266307 * A266309 A266310 A266311

Keyword

nonn

Author

R. H. Hardin, Dec 26 2015

Status

approved