A267283 Number of nX(n+4) arrays of permutations of n+4 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, 462, 13767, 741057, 79348962, 13687472182

Offset

1,2

Comments

Superdiagonal 4 of A267278.

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Cf. A267278.

Sequence in context: A027816 A027823 A194718 * A289349 A023912 A027565

Adjacent sequences: A267280 A267281 A267282 * A267284 A267285 A267286

Keyword

nonn

Author

R. H. Hardin, Jan 12 2016

Status

approved