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A085912
Group the natural numbers such that the product of the terms of the n-th group is divisible by n!. (1),(2),(3,4),(5,6,7,8),(9,10,11,12),(13,14,15,16,17,18),(19,20,21,22,23,24),... Sequence contains the product pertaining to groups.
3
1, 2, 12, 1680, 11880, 13366080, 96909120, 424097856000, 3100796899200, 37276043023296000, 273589847231500800, 7359037761652306329600, 54123776422857453312000, 2844359511118991175518208000
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OFFSET
1,2
COMMENTS
Obviously the n-th group has at most n terms.
LINKS
Table of n, a(n) for n=1..14.
CROSSREFS
Cf.
A085913
,
A085914
,
A085915
.
Sequence in context:
A123743
A111180
A235857
*
A085895
A090904
A125295
Adjacent sequences:
A085909
A085910
A085911
*
A085913
A085914
A085915
KEYWORD
nonn
AUTHOR
Amarnath Murthy
and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 10 2003
EXTENSIONS
More terms from
Ray Chandler
, Sep 15 2003
STATUS
approved
