A009803 - OEIS

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A009803

Expansion of tanh(sinh(x)).exp(x).

0, 1, 2, 2, 0, -8, -32, 16, 640, 2304, 1024, -68352, -661504, -843776, 25305088, 221382656, 948699136, -9865887744, -216606572544, -888186732544, 10006005547008, 200433787207680, 2013855760777216, -8060855544971264 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Tanh[ Sinh[ x ] ]*Exp[ x ]`
	CROSSREFS	`Sequence in context: A021457 A137456 A009187 * A009615 A184011 A079194` `Adjacent sequences: A009800 A009801 A009802 * A009804 A009805 A009806`
	KEYWORD	`sign,easy`
	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 14 23:53 EST 2012. Contains 205689 sequences.