id:A009033 - OEIS Search Results

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

+0
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1, 0, -1, 3, 2, -20, -160, 1470, -1412, -17208, -311900, 5526620, -27336032, 64471680, -3978938184, 91242933600, -974175281648, 9223539606848, -209919913406800, 4978659648353904, -83195760215366560, 1324088843470088640 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Cos[ Log[ 1+x ]/Cosh[ x ] ]`
	CROSSREFS	`Sequence in context: A123225 A009028 A009022 this_sequence A018872 A105525 A090883` `Adjacent sequences: A009030 A009031 A009032 this_sequence A009034 A009035 A009036`
	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 4 01:34 EDT 2008. Contains 140787 sequences.

AT&T Labs Research