A267555 Number of nX(n+2) arrays of permutations of n+2 copies of 0..n-1 with every element equal to or 1 greater than any north or northeast neighbors modulo n and the upper left element equal to 0.

1, 35, 83, 350, 2165, 22189, 345443, 8164233, 287561285

Offset

1,2

Comments

Superdiagonal 2 of A267553.

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Cf. A267553.

Sequence in context: A259282 A201068 A111144 * A201632 A044173 A044554

Adjacent sequences: A267552 A267553 A267554 * A267556 A267557 A267558

Keyword

nonn

Author

R. H. Hardin, Jan 17 2016

Status

approved