id:A009717 - OEIS Search Results

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Expansion of tan(tanh(x))*sin(x).

+0
2

0, 2, -4, -42, 1336, -16726, -1194700, 153304830, -10698400400, 188012481362, 107922523124588, -26275693823306202, 3726087789656495272, -203071274271083537926, -64313415452872137435484 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Tan[ Tanh[ x ] ]Sin[ x ] ( Even Part *)`
	CROSSREFS	`Sequence in context: A009547 A009811 A009591 this_sequence A018317 A059794 A141142` `Adjacent sequences: A009714 A009715 A009716 this_sequence A009718 A009719 A009720`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research