id:A009124 - OEIS Search Results

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

+0
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1, 0, 1, -3, 16, -90, 616, -4893, 44416, -453540, 5145856, -64222983, 874402816, -12897183390, 204862698496, -3486535686273, 63292764553216, -1220795601029640, 24931903045697536, -537463528325234763 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`a(2n) = A006154(2n)/2, n>0. - R. Stephan, Apr 29 2004`
	MATHEMATICA	`Cosh[ Log[ 1+Sinh[ x ] ] ]`
	CROSSREFS	`Sequence in context: A146963 A074562 A130744 this_sequence A067679 A099952 A074555` `Adjacent sequences: A009121 A009122 A009123 this_sequence A009125 A009126 A009127`
	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 December 8 08:31 EST 2009. Contains 170430 sequences.

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