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A264796 Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 7. 0
1, 6, 170, 9656, 1369408, 275062400, 89203565824 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 3 of A264794.

LINKS

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

EXAMPLE

Some solutions for n=4

..0..8.11..7....0..2..8..7....8..0..3..7....0..2..8..7....0..1..9..7

..9..1..5..3...10..9..1.11....1..9.11..5...11..5..1..9....4..8.10..2

..2.10..6..4....6..4..3..5...10..2..4..6....4..6.10..3....6.11..5..3

CROSSREFS

Cf. A264794.

Sequence in context: A002884 A198176 A264358 * A266852 A266311 A323820

Adjacent sequences:  A264793 A264794 A264795 * A264797 A264798 A264799

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 25 2015

STATUS

approved

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Last modified May 27 13:04 EDT 2022. Contains 354097 sequences. (Running on oeis4.)