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Search: id:A067668
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A067668 a(n)=(3^n)!/3^(floor(3^n/2)). +0
1
2, 4480, 6829776306569216000000, 47682888135639254304159279716346160519398489681195602851949240089285579610571931\ 6480000000000000000000 (list; graph; listen)
OFFSET

1,1

COMMENT

3^(floor(3^n/2)) is the highest power of 3 dividing (3^n)!

CROSSREFS

Sequence in context: A135959 A114722 A105667 this_sequence A153737 A078933 A064029

Adjacent sequences: A067665 A067666 A067667 this_sequence A067669 A067670 A067671

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 04 2002

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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