A012794 - OEIS

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A012794

sech(sec(x)*arcsin(x))=1-1/2!*x^2-11/4!*x^4-85/6!*x^6+4457/8!*x^8...

1, -1, -11, -85, 4457, 456055, 19404317, -2130838749, -709981721647, -88561132771729, 8928572938556485, 8215826370826826011, 1643974395579178155321, -777302111773052397223705 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,3`
	LINKS	`Table of n, a(n) for n=0..13.`
	CROSSREFS	`Sequence in context: A001240 A129180 A082365 * A014917 A080962 A016222` `Adjacent sequences: A012791 A012792 A012793 * A012795 A012796 A012797`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (patrick.demichel(AT)hp.com)`
	STATUS	`approved`

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Last modified May 25 06:36 EDT 2013. Contains 225644 sequences.