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A268118 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 west neighbors modulo n and the upper left element equal to 0. 0
1, 35, 114, 1256, 23522, 726627, 36708187, 3039274773 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Superdiagonal 2 of A268115.

LINKS

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

EXAMPLE

Some solutions for n=5

..0..0..1..2..2..3..4....0..0..1..1..2..2..3....0..1..2..2..3..3..4

..1..1..2..2..3..4..0....1..1..2..2..3..3..4....1..2..3..3..4..4..0

..1..2..3..3..4..0..0....2..2..2..3..4..4..0....2..2..3..4..0..0..1

..2..3..3..4..4..0..1....3..3..3..4..0..0..0....2..3..4..4..0..1..1

..2..3..4..4..0..1..1....4..4..4..0..1..1..1....2..3..4..0..0..1..1

CROSSREFS

Cf. A268115.

Sequence in context: A156332 A110832 A251269 * A212888 A044286 A044667

Adjacent sequences:  A268115 A268116 A268117 * A268119 A268120 A268121

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2016

STATUS

approved

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Last modified April 18 22:08 EDT 2019. Contains 322237 sequences. (Running on oeis4.)