A013043 - OEIS

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A013043

sech(sinh(x)+arcsin(x))=1-4/2!*x^2+64/4!*x^4-2464/6!*x^6...

1, -4, 64, -2464, 176000, -20274304, 3418964992, -795860555520, 244118384340992, -95517422279237632, 46396805200416325632, -27406009571869059219456, 19339103621838228194852864 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A181398 A081559 A002454 * A167406 A156631 A088065` `Adjacent sequences: A013040 A013041 A013042 * A013044 A013045 A013046`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 15 21:27 EST 2012. Contains 205859 sequences.