id:A009770 - OEIS Search Results

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Expansion of tanh(ln(1+ln(1+x))).

+0
1

0, 1, -2, 5, -11, -16, 656, -9066, 107766, -1222110, 13400544, -137979810, 1199045706, -4684987308, -153270916044, 6326220565560, -169975260810216, 3943603406845656, -83676044951653392, 1624994111075924376 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Tanh[ Log[ 1+Log[ 1+x ] ] ]`
	CROSSREFS	`Sequence in context: A024917 A081402 A118660 this_sequence A132121 A070957 A166744` `Adjacent sequences: A009767 A009768 A009769 this_sequence A009771 A009772 A009773`
	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 November 25 13:47 EST 2009. Contains 167481 sequences.

AT&T Labs Research