A009094 - OEIS

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A009094

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

1, -12, -4592, -6274752, 18138366208, 2332645761266688, 202540305420145266688, 24977439274944176331767808, 4480212151308993274762821173248, 1107507319145672023044777103840247808, 336310686770623540666061200154740824997888 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	MATHEMATICA	`Cos[ Tanh[ x ]Tan[ x ] ] ( [ x^(4n) ] *)`
	CROSSREFS	`Sequence in context: A096732 A127233 A169657 * A061701 A134821 A013508` `Adjacent sequences: A009091 A009092 A009093 * A009095 A009096 A009097`
	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 February 17 03:30 EST 2012. Contains 205978 sequences.