A067668 - OEIS

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A067668

a(n)=(3^n)!/3^(floor(3^n/2)).

2, 4480, 6829776306569216000000, 476828881356392543041592797163461605193984896811956028519492400892855796105719316480000000000000000000 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`3^(floor(3^n/2)) is the highest power of 3 dividing (3^n)!`
	CROSSREFS	`Sequence in context: A114722 A105667 A178410 * A195002 A203756 A153737` `Adjacent sequences: A067665 A067666 A067667 * A067669 A067670 A067671`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 04 2002`

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Last modified February 14 07:16 EST 2012. Contains 205589 sequences.