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A264710
Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 6.
0
1, 1, 8, 84, 800, 15360, 357696, 6873984, 262813248, 12288817152, 432621305856, 28148895055872, 2108257586380800
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OFFSET
1,3
COMMENTS
Row 2 of
A264709
.
LINKS
Table of n, a(n) for n=1..13.
EXAMPLE
Some solutions for n=6
..6..0..1..7..4.10....0..6..3..9..1..8....6..3..1..4..2..8....6..0.10..4..1..7
..3..9..8..2..5.11....7..4.10.11..2..5....0..9..7.10.11..5....9..3.11..5..2..8
CROSSREFS
Cf.
A264709
.
Sequence in context:
A307829
A039939
A199907
*
A143868
A130591
A166483
Adjacent sequences:
A264707
A264708
A264709
*
A264711
A264712
A264713
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Nov 21 2015
STATUS
approved