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A267748 Number of nX3 arrays containing 3 copies of 0..n-1 with every element equal to or 1 greater than any north neighbor modulo n and the upper left element equal to 0. 0
1, 10, 39, 118, 313, 780, 1789, 4024, 8793, 18760, 39577, 82662, 170677, 350758, 717189, 1458604, 2959003, 5987586 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A267751.

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A267751.

Sequence in context: A022277 A188480 A059722 * A229325 A074225 A055514

Adjacent sequences:  A267745 A267746 A267747 * A267749 A267750 A267751

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 20 2016

STATUS

approved

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Last modified August 5 01:51 EDT 2021. Contains 346456 sequences. (Running on oeis4.)