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A174560
Number of 3 X n Latin rectangles whose second row has cycles of even length only.
3
0, 24, 0, 18000, 0, 52254720
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OFFSET
3,2
LINKS
Table of n, a(n) for n=3..8.
V. S. Shevelev,
Reduced Latin rectangles and square matrices with equal row and column sums
, Diskr. Mat.(J. of the Akademy of Sciences of Russia) 4(1992), 91-110.
CROSSREFS
Cf.
A000186
,
A094047
,
A174556
.
Sequence in context:
A364203
A308304
A265090
*
A267427
A040581
A305762
Adjacent sequences:
A174557
A174558
A174559
*
A174561
A174562
A174563
KEYWORD
nonn
,
more
,
uned
AUTHOR
Vladimir Shevelev
, Mar 22 2010
STATUS
approved
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Last modified August 30 07:09 EDT 2024. Contains 375532 sequences. (Running on oeis4.)