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A267339 Number of (n+1)Xn arrays containing n copies of 0..n+1-1 with every element equal to or 1 greater than any north, west or southwest neighbors modulo n and the upper left element equal to 0. 0
1, 1, 2, 2, 4, 9, 24, 89, 594, 4086, 39921 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Subdiagonal 1 of A267338.

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=7

..0..1..2..3..4..4..5....0..0..1..1..2..2..3....0..1..2..3..4..4..5

..1..2..3..3..4..5..6....0..0..1..1..2..3..4....1..2..3..3..4..5..6

..2..2..3..4..5..6..7....0..0..1..2..3..4..5....2..3..3..4..5..6..7

..2..3..4..5..6..7..0....0..1..2..3..4..5..6....2..3..4..5..6..7..0

..3..4..5..6..7..0..1....1..2..3..4..5..6..7....3..4..5..6..7..0..1

..4..5..6..7..0..1..1....2..3..4..5..6..6..7....4..5..6..7..0..1..2

..5..6..7..0..0..1..2....3..4..5..6..6..7..7....5..6..7..0..0..1..2

..6..7..7..0..1..2..3....4..5..5..6..7..7..7....6..7..7..0..1..1..2

CROSSREFS

Cf. A267338.

Sequence in context: A166022 A052925 A006182 * A308434 A121623 A267347

Adjacent sequences:  A267336 A267337 A267338 * A267340 A267341 A267342

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 13 2016

STATUS

approved

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Last modified August 10 16:24 EDT 2022. Contains 356039 sequences. (Running on oeis4.)