A012439 - OEIS

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A012439

tanh(arctan(x)*arcsin(x))=2/2!*x^2-4/4!*x^4-82/6!*x^6+3096/8!*x^8...

2, -4, -82, 3096, 14202, -4057260, 614585190, 65252737200, 9930277245810, 3938676912038700, 2327811184268315550, 661470912900859782600, 625005810716811201651690, 275157523021831158684027780 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	CROSSREFS	`Sequence in context: A092932 A102663 A076961 * A012435 A121103 A018397` `Adjacent sequences: A012436 A012437 A012438 * A012440 A012441 A012442`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 15 15:20 EST 2012. Contains 205823 sequences.