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Search: id:A013336
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A013336 arctanh(exp(x)-sec(x))=x+3/3!*x^3-4/4!*x^4+45/5!*x^5-180/6!*x^6... +0
1
1, 0, 3, -4, 45, -180, 1743, -13704, 135705, -1613160, 18065883, -276222604, 3655783365, -65652672540, 1034667581223, -20865280018704, 387014665823025, -8593188683674320, 184059142857923763 (list; graph; listen)
OFFSET

0,3

CROSSREFS

Sequence in context: A127614 A041055 A032838 this_sequence A032839 A056855 A080073

Adjacent sequences: A013333 A013334 A013335 this_sequence A013337 A013338 A013339

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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