A012491 - OEIS

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A012491

sec(cos(x)*arcsin(x))=1+1/2!*x^2-3/4!*x^4-75/6!*x^6+1337/8!*x^8...

1, 1, -3, -75, 1337, 144105, 3933237, 118760733, 129911988593, 47180864336337, 13805291952312685, 5130037600431416453, 2642764719782227835049, 1617152674535806453668025 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	CROSSREFS	`Sequence in context: A125520 A163131 A060869 * A136328 A003690 A195263` `Adjacent sequences: A012488 A012489 A012490 * A012492 A012493 A012494`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.