A009548 - OEIS

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A009548

Expansion of sin(x)*sin(tan(x)).

0, 2, 0, -32, -1984, -118016, -8529920, -754714880, -79868821504, -9749056634880, -1296267479826432, -165153529347768320, -9993013885707223040, 7114872804447958401024, 5975166564856692622753792 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	MATHEMATICA	`Sin[ x ]Sin[ Tan[ x ] ] ( Even Part *)`
	CROSSREFS	`Sequence in context: A156504 A009665 A053552 * A172388 A193052 A120489` `Adjacent sequences: A009545 A009546 A009547 * A009549 A009550 A009551`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified February 16 16:00 EST 2012. Contains 205938 sequences.