id:A012260 - OEIS Search Results

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exp(arctanh(atan(x)))=1+x+1/2!*x^2+1/3!*x^3+1/4!*x^4+9/5!*x^5...

+0
1

1, 1, 1, 1, 1, 9, 49, 57, -447, 5169, 78561, -93807, -5655231, 31981689, 1014069393, -3857766903, -187639949439, 1058896281825, 51144433721793, -286891166986335, -16631972691697791, 108826313005021545 (list; graph; listen)

	OFFSET	`0,6`
	CROSSREFS	`Sequence in context: A073584 A007037 A072461 this_sequence A133478 A032589 A137175` `Adjacent sequences: A012257 A012258 A012259 this_sequence A012261 A012262 A012263`
	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