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Search: id:A012798
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A012798 arctanh(sec(x)*tan(x))=x+7/3!*x^3+185/5!*x^5+12367/7!*x^7... +0
1
1, 7, 185, 12367, 1558865, 316097527, 94003171145, 38543705698687, 20840298552277025, 14366953364916735847, 12299504390976449116505, 12801737583190675819689007, 15920156445351352463114729585 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A068339 A059382 A012843 this_sequence A010332 A024096 A030257

Adjacent sequences: A012795 A012796 A012797 this_sequence A012799 A012800 A012801

KEYWORD

nonn

AUTHOR

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

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Last modified August 29 14:50 EDT 2008. Contains 143238 sequences.

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