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A264559 Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 3. 0
2, 24, 888, 58368, 7019136, 1202698368 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A264560.
LINKS
EXAMPLE
Some solutions for n=4
..0..6..3....9..1..3...10..6..3....6..0..3....9..7..3....3.11..9....6..0.10
.10..4..9....0..4..2....7..9..1....1..5..9....0..4..6....6..8..0....3..9..7
..1..7..5....6..7.11....4..0..5....4..8..7...10..2..8....7..5..1....5.11..1
..2..8.11...10..8..5....8..2.11...10..2.11....1..5.11...10..2..4....8..2..4
CROSSREFS
Cf. A264560.
Sequence in context: A339946 A172492 A322895 * A012186 A012081 A137274
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2015
STATUS
approved

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Last modified February 29 03:50 EST 2024. Contains 370401 sequences. (Running on oeis4.)