id:A009655 - OEIS Search Results

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Expansion of tan(ln(1+x)^2).

+0
3

0, 0, 2, -6, 22, -100, 788, -8568, 103416, -1307808, 17722512, -264361680, 4373968080, -79413478560, 1558387903200, -32713320769920, 731007454396800, -17347090012492800, 436154519763744000, -11585396062022112000 (list; graph; listen)

	OFFSET	`0,3`
	EXAMPLE	`tan(log(x+1)^2) = 2/2!x^2-6/3!x^3+22/4!x^4-100/5!x^5...`
	MATHEMATICA	`Tan[ Log[ 1+x ]^2 ]`
	CROSSREFS	`Sequence in context: A009585 A012267 A012268 this_sequence A002772 A000140 A079263` `Adjacent sequences: A009652 A009653 A009654 this_sequence A009656 A009657 A009658`
	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 December 13 23:45 EST 2009. Contains 170824 sequences.

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