id:A009156 - OEIS Search Results

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

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1, 0, 1, -3, 20, -140, 1216, -12096, 137080, -1737504, 24368656, -374527120, 6259083896, -112992788688, 2191121957480, -45420491782680, 1002232901602496, -23453004823018496, 580102806342112960 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Cosh[ Tan[ Log[ 1+x ] ] ]`
	CROSSREFS	`Adjacent sequences: A009153 A009154 A009155 this_sequence A009157 A009158 A009159` `Sequence in context: A074574 A073514 A082143 this_sequence A074573 A068571 A074569`
	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 10 20:39 EDT 2008. Contains 144831 sequences.

AT&T Labs Research