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A266290 Number of nX3 arrays containing 3 copies of 0..n-1 with no element 1 greater than its north, west or northeast neighbor modulo n and the upper left element equal to 0. 0
1, 0, 5, 91, 40727, 20874574, 23274835718, 39868129982498, 102457584348682968 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 3 of A266291.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A266291.

Sequence in context: A243198 A091281 A109625 * A222903 A024069 A295407

Adjacent sequences:  A266287 A266288 A266289 * A266291 A266292 A266293

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2015

STATUS

approved

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Last modified August 11 18:37 EDT 2020. Contains 336428 sequences. (Running on oeis4.)