id:A009183 - OEIS Search Results

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

+0
1

1, 0, 0, 3, -11, 30, -14, -525, 4593, -22428, 17596, 1039995, -13641275, 96216978, -105681666, -8517557685, 148962722881, -1373978443800, 1940315387608, 198084321525267, -4330346354150859, 49339565916861990, -85160442362115350 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Cosh[ x ]/Cosh[ Log[ 1+x ] ]`
	CROSSREFS	`Sequence in context: A000251 A122023 A060255 this_sequence A106397 A098150 A085376` `Adjacent sequences: A009180 A009181 A009182 this_sequence A009184 A009185 A009186`
	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 July 19 08:04 EDT 2008. Contains 142098 sequences.

AT&T Labs Research