A013359 - OEIS

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A013359

sech(sin(x)-tan(x))=1-90/6!*x^6-2520/8!*x^8-126630/10!*x^10...

1, 0, 0, -90, -2520, -126630, -2243340, 382612230, 134674853040, 26271944587890, 4394379581092620, 324925984573170750, -181350289825568364600, -145875833202121504544790 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,4`
	LINKS	`Table of n, a(n) for n=0..13.`
	CROSSREFS	`Sequence in context: A055603 A210090 A109124 * A013355 A013357 A013358` `Adjacent sequences: A013356 A013357 A013358 * A013360 A013361 A013362`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (patrick.demichel(AT)hp.com)`
	STATUS	`approved`

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Last modified May 18 09:19 EDT 2013. Contains 225419 sequences.