id:A012222 - OEIS Search Results

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exp(arctan(tanh(x)))=1+x+1/2!*x^2-3/3!*x^3-15/4!*x^4+41/5!*x^5...

+0
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1, 1, 1, -3, -15, 41, 561, -1243, -40415, 58001, 4825121, -1956083, -866056815, -740509639, 218527875281, 509169335477, -73838559553215, -295854887910879, 32207514779999041, 189240977761969437 (list; graph; listen)

	OFFSET	`0,4`
	CROSSREFS	`Sequence in context: A014309 A096742 A012256 this_sequence A069267 A059270 A093627` `Adjacent sequences: A012219 A012220 A012221 this_sequence A012223 A012224 A012225`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research