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 A012589 cos(arcsinh(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-19/4!*x^4-20/5!*x^5... 0
 1, 0, -1, -6, -19, -20, 155, 1190, 6617, 44664, 208375, -904398, -18752699, -19097052, 694693779, -17424099810, -291885915727, 3147952642416, 73814350009583, -859299092152342, -22448554968159587 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS FORMULA a(n) ~ (2*cosh(Pi*cos(1)/2) * sin(n*Pi/2-1) * sin(Pi*sin(1)/2) + 2*cos(n*Pi/2-1) * cos(Pi*sin(1)/2) * sinh(Pi*cos(1)/2)) * n^(n-1) / exp(n). - Vaclav Kotesovec, Oct 31 2013 MATHEMATICA CoefficientList[Series[Cos[ArcSinh[x]*Exp[x]], {x, 0, 20}], x]* Range[0, 20]! (* Vaclav Kotesovec, Oct 31 2013 *) CROSSREFS Sequence in context: A245869 A184197 A173568 * A009048 A294313 A235537 Adjacent sequences: A012586 A012587 A012588 * A012590 A012591 A012592 KEYWORD sign AUTHOR Patrick Demichel (patrick.demichel(AT)hp.com) STATUS approved

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Last modified December 2 20:59 EST 2022. Contains 358510 sequences. (Running on oeis4.)