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A264819 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 7. 0
1, 1, 8, 44, 348, 3946, 52524, 1041936, 22648272, 828481536, 26112652416, 1017144989568, 50591916092160 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Row 2 of A264818.

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=7

..3..9..0..1..7.11..8...12..9..3..0..7.11..8...12..3..0..9..4..1..7

.12..6.13.10..4..5..2....6.13.10..1..4..5..2....6.13.10..5.11..8..2

CROSSREFS

Cf. A264818.

Sequence in context: A220629 A210118 A112908 * A028565 A129553 A174643

Adjacent sequences:  A264816 A264817 A264818 * A264820 A264821 A264822

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 25 2015

STATUS

approved

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Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)