A012223 - OEIS

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A012223

arcsin(arctan(tanh(x)))=x-3/3!*x^3+49/5!*x^5-2139/7!*x^7+181921/9!*x^9...

1, -3, 49, -2139, 181921, -25347539, 5231635473, -1498270773419, 568381637171521, -275844413823596835, 166680279670474243825, -122705715387723016322939, 108112687783657068510670305 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A012126 A203513 A012040 * A012100 A106842 A203743` `Adjacent sequences: A012220 A012221 A012222 * A012224 A012225 A012226`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 17 07:27 EST 2012. Contains 205998 sequences.