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A267626 Number of nX3 arrays containing 3 copies of 0..n-1 with every element equal to or 1 greater than any west neighbor modulo n and the upper left element equal to 0. 0
1, 10, 39, 208, 1576, 14830, 168500, 2247280, 34423760, 596248800, 11529957600, 246360114000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A267629.

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=4

..0..1..2....0..1..2....0..1..2....0..0..0....0..0..1....0..1..2....0..0..1

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

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

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

CROSSREFS

Cf. A267629.

Sequence in context: A074225 A055514 A055233 * A189947 A197705 A306413

Adjacent sequences:  A267623 A267624 A267625 * A267627 A267628 A267629

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 18 2016

STATUS

approved

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Last modified July 27 11:04 EDT 2021. Contains 346304 sequences. (Running on oeis4.)