id:A027637 - OEIS Search Results

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Product(4^i - 1, i=1..n).

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1, 3, 45, 2835, 722925, 739552275, 3028466566125, 49615367752825875, 3251543125681443718125, 852369269595510700600441875, 893773106866112632882108339078125 (list; graph; listen)

	OFFSET	`0,2`
	MAPLE	`product(4^'i'-1, 'i'=1..n);`
	CROSSREFS	`Sequence in context: A117253 A012833 A012747 this_sequence A099168 A004105 A060336` `Adjacent sequences: A027634 A027635 A027636 this_sequence A027638 A027639 A027640`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research