A013192 - OEIS

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A013192

log(cosh(x)+arctanh(x))=x+1/3!*x^3-4/4!*x^4+33/5!*x^5-168/6!*x^6...

1, 0, 1, -4, 33, -168, 1377, -9504, 99649, -930560, 11796673, -137207552, 2017677153, -28086102016, 471591223841, -7659623550976, 144742585812609, -2686461109796864, 56447611418620289 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	CROSSREFS	`Sequence in context: A152041 A041027 A095671 * A097705 A131509 A081007` `Adjacent sequences: A013189 A013190 A013191 * A013193 A013194 A013195`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 15 21:00 EST 2012. Contains 205852 sequences.