A267567 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 west or southwest neighbors modulo n and the upper left element equal to 0.

1, 462, 2046, 60954, 4032703, 463755018, 86034010064

Offset

1,2

Comments

Superdiagonal 4 of A267562.

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Cf. A267562.

Sequence in context: A246476 A202642 A158627 * A267557 A154056 A236350

Adjacent sequences: A267564 A267565 A267566 * A267568 A267569 A267570

Keyword

nonn

Author

R. H. Hardin, Jan 17 2016

Status

approved