A267331 Number of n X (n+3) arrays of permutations of n+3 copies of 0..n-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo n and the upper left element equal to 0.

1, 126, 202, 2516, 39176, 552162, 6837388, 77332028, 812885568, 8070454972, 77792565998

Offset

1,2

Comments

Superdiagonal 3 of A267328.

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Cf. A267328.

Sequence in context: A203566 A320292 A104395 * A267739 A290203 A254370

Adjacent sequences: A267328 A267329 A267330 * A267332 A267333 A267334

Keyword

nonn,more

Author

R. H. Hardin, Jan 13 2016

Status

approved