A009215 - OEIS

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A009215

Expansion of exp(sin(x)/cosh(x)).

1, 1, 1, -3, -15, -3, 297, 1113, -6783, -77063, 70609, 5509845, 18558705, -430006731, -4027228359, 33282260529, 727421677185, -1454472663311, -134584692783455, -448480622503635, 26232888936219249, 254015086363619949 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Exp[ Sin[ x ]/Cosh[ x ] ]`
	CROSSREFS	`Sequence in context: A048568 A119678 A096682 * A088558 A012881 A066832` `Adjacent sequences: A009212 A009213 A009214 * A009216 A009217 A009218`
	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 18:09 EST 2012. Contains 205663 sequences.