id:A105751 - OEIS Search Results

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IM(Product{k=0..n, 1+kI}), I=sqrt(-1).

+0
2

0, 1, 3, 0, -40, -90, 1050, 6160, -46800, -549900, 3103100, 67610400, -271627200, -11186357000, 26495469000, 2416003824000, -1394099824000, -662595375078000, -936096296850000, 225382826562400000, 819329864480400000, -93217812901913700000, -570263312237604700000 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Cf. A003703, A009454, A105750.` `Sequence in context: A007415 A058833 A012775 this_sequence A009786 A012738 A012759` `Adjacent sequences: A105748 A105749 A105750 this_sequence A105752 A105753 A105754`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 18 2005`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

AT&T Labs Research