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A264642 Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 4. 0
1, 8, 149, 3741, 199456, 18120064, 1726126592 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A264643.

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=4

..4.10..8....2..8..5....4..5..8....9..6..0....4..5..8....1..5..8....1..8..5

..0..7..1....6..0..9....6..9..0....1.10..4....6..9..0....9..6..0....6..0..9

..6..3..9....3..4..1...10..1..7...11..2..8....3..1.10...10..7..4....7..4.10

..2.11..5....7.10.11....3..2.11....3..7..5....7..2.11....3.11..2....3.11..2

CROSSREFS

Cf. A264643.

Sequence in context: A075351 A302063 A220559 * A300872 A217502 A229955

Adjacent sequences:  A264639 A264640 A264641 * A264643 A264644 A264645

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2015

STATUS

approved

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Last modified January 22 16:37 EST 2020. Contains 331152 sequences. (Running on oeis4.)