id:A009600 - OEIS Search Results

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Expansion of sin(tan(x)).x/2.

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1, 56, 5056, -8648704, -7517057024, 82066777604096, 27511745714323456, -8171138983967372345344, 74351622296124892534276096, 3458659437902679786800310910976 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Sinh[ Sinh[ x ]Sin[ x ] ]/2 ( [ x^(4n+2) ] *)`
	CROSSREFS	`Cf. A012528.` `Sequence in context: A042513 A003747 A049033 this_sequence A006690 A082167 A034204` `Adjacent sequences: A009597 A009598 A009599 this_sequence A009601 A009602 A009603`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs 03/97.`

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.

AT&T Labs Research