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A267330
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 southwest or northwest neighbors modulo n and the upper left element equal to 0.
0
1, 35, 65, 396, 1929, 8314, 29393, 99680, 376803, 1268170, 4617875
OFFSET
1,2
COMMENTS
Superdiagonal 2 of A267328.
EXAMPLE
Some solutions for n=4
..0..1..2..2..3..0....0..0..1..2..2..3....0..1..2..2..3..0....0..0..1..1..2..2
..1..1..2..3..3..0....0..0..1..2..2..3....0..1..1..2..3..3....3..0..1..1..2..3
..0..1..2..2..3..3....0..1..1..2..3..3....0..0..1..2..3..3....3..0..0..1..2..2
..0..1..1..2..3..0....0..1..1..2..3..3....0..1..1..2..2..3....3..3..0..1..2..3
CROSSREFS
Cf. A267328.
Sequence in context: A292081 A162832 A224485 * A353175 A229357 A376713
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 13 2016
STATUS
approved