A067667 - OEIS

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A067667

a(n)=(2^n)!/2^(2^n-1).

1, 3, 315, 638512875, 122529844256906551386796875, 13757108753595648665519665029568345104465749222289382342659100341796875 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A034994 A139541 A168440 * A080976 A160070 A112895` `Adjacent sequences: A067664 A067665 A067666 * A067668 A067669 A067670`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 04 2002`

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Last modified February 15 03:14 EST 2012. Contains 205694 sequences.