A267396 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 north, west or northeast neighbors modulo n and the upper left element equal to 0.

1, 462, 278, 1975, 20470, 296985, 5950744, 165102597

Offset

1,2

Comments

Superdiagonal 4 of A267392.

Links

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

Example

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

Crossrefs

Cf. A267392.

Sequence in context: A094380 A267404 A267343 * A258962 A267332 A353022

Adjacent sequences: A267393 A267394 A267395 * A267397 A267398 A267399

Keyword

nonn

Author

R. H. Hardin, Jan 13 2016

Status

approved