A102059 - OEIS

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A102059

Expansion of cos(atanh(x)).

1, -1, -7, -145, -6095, -433025, -46676375, -7108596625, -1454225641375, -384836032842625, -127950804666254375, -52219402100109700625, -25668587693366081579375, -14959038795678519196890625 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	EXAMPLE	`cos(atanh(x)) = 1 - x^2/2 - 7x^4/4! - 145x^6/6! - 6095x^8/8! -...`
	CROSSREFS	`Bisection of A002019.` `Sequence in context: A156978 A163028 A012826 * A064624 A048935 A152552` `Adjacent sequences: A102056 A102057 A102058 * A102060 A102061 A102062`
	KEYWORD	`sign`
	AUTHOR	`Ralf Stephan, Dec 28 2004`

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