id:A009311 - OEIS Search Results

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

+0
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0, 1, -2, 5, -19, 104, -706, 5662, -53082, 570600, -6897016, 92565296, -1366706848, 22016867248, -384226243584, 7220865546000, -145397565641296, 3122890640031488, -71266398589322368, 1722010388581604224 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Log[ 1+Log[ 1+Tanh[ x ] ] ]`
	CROSSREFS	`Sequence in context: A054687 A076669 A093502 this_sequence A107882 A089126 A113346` `Adjacent sequences: A009308 A009309 A009310 this_sequence A009312 A009313 A009314`
	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 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research