A267343 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 southwest neighbors modulo n and the upper left element equal to 0.

1, 462, 222, 1220, 14328, 401459, 21319105, 2025457429

Offset

1,2

Comments

Superdiagonal 4 of A267338.

Links

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

Example

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

Crossrefs

Cf. A267338.

Sequence in context: A348899 A094380 A267404 * A267396 A258962 A267332

Adjacent sequences: A267340 A267341 A267342 * A267344 A267345 A267346

Keyword

nonn

Author

R. H. Hardin, Jan 13 2016

Status

approved