A009726 - OEIS

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A009726

Expansion of tan(x)*cos(ln(1+x)).

0, 1, 0, -1, 12, -54, 360, -2094, 15568, -113516, 979200, -8587668, 84989520, -863430840, 9562970144, -108058865368, 1285366485120, -15130564865136, 174638241040896, -1701739763904144, 7392841627579840, 326394843481495456 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,5`
	MATHEMATICA	`Tan[ x ]*Cos[ Log[ 1+x ] ]`
	CROSSREFS	`Sequence in context: A183713 A126399 A137938 * A190948 A143856 A009653` `Adjacent sequences: A009723 A009724 A009725 * A009727 A009728 A009729`
	KEYWORD	`sign,easy`
	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 14 21:50 EST 2012. Contains 205663 sequences.