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A264730
Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 6.
0
1, 3, 48, 663, 23096, 1602048, 165778944, 13350330368
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OFFSET
1,2
COMMENTS
Row 3 of
A264728
.
LINKS
Table of n, a(n) for n=1..8.
EXAMPLE
Some solutions for n=5
.12..0..2.14..6....8.12..0..6..7....0.12.13..1..7....0.12..1..6..2
..8.13..9..5..7....4.13..1..2..3...10..6.14..2..3....8..9.13..7..3
..4..1.10.11..3....5..9.14.10.11....4..8..9..5.11....4..5.10.14.11
CROSSREFS
Cf.
A264728
.
Sequence in context:
A140650
A081540
A294829
*
A024042
A007654
A001080
Adjacent sequences:
A264727
A264728
A264729
*
A264731
A264732
A264733
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Nov 22 2015
STATUS
approved
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Last modified September 18 21:47 EDT 2024. Contains 376002 sequences. (Running on oeis4.)