A012644 - OEIS

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A012644

sec(arcsinh(x)*cos(x))=1+1/2!*x^2-11/4!*x^4-35/6!*x^6+7817/8!*x^8...

1, 1, -11, -35, 7817, -79975, -36304963, 2699226933, 396427182993, -87651048858959, -16569660529400315, 10430924939842521613, -942407687412636958951, -611722217603320514811575 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	CROSSREFS	`Sequence in context: A098116 A123749 A159493 * A138893 A191292 A107280` `Adjacent sequences: A012641 A012642 A012643 * A012645 A012646 A012647`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 15 12:59 EST 2012. Contains 205788 sequences.