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Search: id:A012660
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A012660 arctan(tanh(x)*exp(x))=x+2/2!*x^2-1/3!*x^3-28/4!*x^4-115/5!*x^5... +0
1
1, 2, -1, -28, -115, 422, 10859, 62792, -658855, -17714998, -105832681, 2697504812, 73345212005, 348796937582, -22580196404221, -608734768217968, -1123101121107535, 335099557538486162 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A089963 A012411 A012415 this_sequence A015155 A009822 A005693

Adjacent sequences: A012657 A012658 A012659 this_sequence A012661 A012662 A012663

KEYWORD

sign

AUTHOR

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

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Last modified July 4 18:25 EDT 2008. Contains 140886 sequences.

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