id:A024243 - OEIS Search Results

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Expansion of tanh(sin(x).x)/2.

+0
2

0, 1, -2, -117, 3356, 176405, -25528806, -511975457, 554197425592, -35655181253847, -25582284242683210, 6598119430000033331, 1878722559559319754708, -1478103068989901067214787, -77274866172665629115051054 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Tanh[ Sin[ x ]x ]/2 ( Even Part *)`
	CROSSREFS	`A009800.` `Sequence in context: A065670 A105327 A042681 this_sequence A013511 A013507 A103851` `Adjacent sequences: A024240 A024241 A024242 this_sequence A024244 A024245 A024246`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs 03/97.`

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Last modified August 29 14:50 EDT 2008. Contains 143238 sequences.

AT&T Labs Research