id:A009108 - OEIS Search Results

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Expansion of cos(x)/cosh(ln(1+x)).

+0
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1, 0, -2, 3, 1, -30, 164, -525, -391, 22428, -206686, 1039995, 1161337, -96216978, 1241356024, -8517557685, -12681799919, 1373978443800, -22791296600794, 198084321525267, 368659923645521, -49339565916861990 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Cos[ x ]/Cosh[ Log[ 1+x ] ]`
	CROSSREFS	`Adjacent sequences: A009105 A009106 A009107 this_sequence A009109 A009110 A009111` `Sequence in context: A102583 A030780 A137738 this_sequence A016537 A106385 A027413`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

AT&T Labs Research