A012683 - OEIS

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A012683

arcsinh(tanh(x)*arctan(x))=2/2!*x^2-16/4!*x^4+200/6!*x^6+1024/8!*x^8...

2, -16, 200, 1024, -523232, 36263680, 7024697472, -3839533326336, 933770326393344, 5856130402316288, -153024990104004376576, 83925295292036381278208, 4161808298471932199182336 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	CROSSREFS	`Sequence in context: A183205 A006335 A051711 * A012677 A158212 A036081` `Adjacent sequences: A012680 A012681 A012682 * A012684 A012685 A012686`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 17 23:08 EST 2012. Contains 206085 sequences.