id:A009137 - OEIS Search Results

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

+0
1

1, 0, 1, -3, 24, -120, 990, -7140, 69048, -658728, 7542960, -89216160, 1191378408, -16691737920, 255303337016, -4111553595240, 70932973452032, -1287129875516672, 24738396315075648, -498729120183554688 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Cosh[ Log[ 1+x ]/Cos[ x ] ]`
	CROSSREFS	`Adjacent sequences: A009134 A009135 A009136 this_sequence A009138 A009139 A009140` `Sequence in context: A065692 A127520 A009134 this_sequence A001089 A069515 A056350`
	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