A268119 Number of nX(n+3) arrays of permutations of n+3 copies of 0..n-1 with every element equal to or 1 greater than any north or west neighbors modulo n and the upper left element equal to 0.

1, 126, 414, 7396, 253472, 15303976, 1582675968, 276165720476

Offset

1,2

Comments

Superdiagonal 3 of A268115.

Links

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

Example

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

Crossrefs

Cf. A268115.

Sequence in context: A323759 A102805 A267556 * A202406 A202399 A201467

Adjacent sequences: A268116 A268117 A268118 * A268120 A268121 A268122

Keyword

nonn

Author

R. H. Hardin, Jan 26 2016

Status

approved