A266598 Number of nX3 arrays containing 3 copies of 0..n-1 with no element 1 greater than its north or northeast neighbor modulo n and the upper left element equal to 0.

1, 0, 6, 964, 289569, 188978578, 207181732018, 357677449791820, 912613747687355713

Offset

1,3

Comments

Column 3 of A266599.

Links

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

Example

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

Crossrefs

Cf. A266599.

Sequence in context: A214638 A175554 A263423 * A250392 A145250 A332196

Adjacent sequences: A266595 A266596 A266597 * A266599 A266600 A266601

Keyword

nonn

Author

R. H. Hardin, Jan 01 2016

Status

approved