id:A024277 - OEIS Search Results

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Expansion of ln(1+tanh(x)*tan(x))/2.

+0
2

0, 1, -6, 176, -8176, 691456, -86186496, 15358324736, -3667315849216, 1135407181398016, -441731548179726336, 211079248633366839296, -121507103129359646457856, 82940335057202543199256576 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Log[ 1+Tanh[ x ]Tan[ x ]]/2 ( Even Part *)`
	CROSSREFS	`A009398.` `Cf. A101921.` `Adjacent sequences: A024274 A024275 A024276 this_sequence A024278 A024279 A024280` `Sequence in context: A055165 A071095 A134632 this_sequence A012177 A012227 A012152`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs 03/97.`

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.

AT&T Labs Research