id:A009798 - OEIS Search Results

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

+0
2

1, -6, 112, -5488, 451840, -57057792, 10262228992, -2484525168640, 779280513040384, -307370299649556480, 148889329569589362688, -86890528715348714192896, 60129120979379216762011648 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Tanh[ Sin[ x ]Cos[ x ]] ( Odd Part *)`
	CROSSREFS	`Cf. A101921.` `Sequence in context: A024274 A162081 A009612 this_sequence A088668 A066931 A051228` `Adjacent sequences: A009795 A009796 A009797 this_sequence A009799 A009800 A009801`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research