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Search: id:A012777
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A012777 arctanh(sec(x)*log(x+1))=x-1/2!*x^2+7/3!*x^3-24/4!*x^4+223/5!*x^5... +0
1
1, -1, 7, -24, 223, -1635, 19409, -221592, 3270325, -50128965, 898512371, -17140184688, 364328185843, -8275583884295, 204221077642685, -5369189766162960, 151121003206989833, -4508710182336979593 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A111753 A012761 A009652 this_sequence A074783 A065658 A034125

Adjacent sequences: A012774 A012775 A012776 this_sequence A012778 A012779 A012780

KEYWORD

sign

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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Last modified December 4 12:27 EST 2008. Contains 151280 sequences.

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