A009650 - OEIS

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A009650

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

0, 1, -1, 7, -24, 195, -1455, 15181, -163128, 2091653, -28920645, 448752819, -7526839056, 137636522647, -2702715523235, 56982020356457, -1280413674123600, 30591670993049033, -773721824135574825 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Tan[ Log[ 1+x ]*Cosh[ x ]]`
	CROSSREFS	`Sequence in context: A009643 A108095 A009646 * A111753 A198055 A012761` `Adjacent sequences: A009647 A009648 A009649 * A009651 A009652 A009653`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified February 17 12:38 EST 2012. Contains 206021 sequences.