id:A012848 - OEIS Search Results

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tanh(sec(x)*arctanh(x))=x+3/3!*x^3-15/5!*x^5-1869/7!*x^7-88959/9!*x^9...

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1, 3, -15, -1869, -88959, 202499, 974640433, 190241481587, 15481756625281, -5564353308576125, -3510791865515349775, -961065703006847944525, 92025876595389114977025, 299254465799630697304777347 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A012796 A096368 A016066 this_sequence A076046 A134807 A004002` `Adjacent sequences: A012845 A012846 A012847 this_sequence A012849 A012850 A012851`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.

AT&T Labs Research