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A012597 arcsinh(arcsinh(x)*sin(x))=2/2!*x^2-8/4!*x^4-40/6!*x^6+4352/8!*x^8... 0

%I

%S 2,-8,-40,4352,8608,-38439040,4405714560,425680207872,

%T -252920252235264,-5528067305916416,44468403610589394944,

%U -15834819953218036760576,-5810504218823261839253504

%N arcsinh(arcsinh(x)*sin(x))=2/2!*x^2-8/4!*x^4-40/6!*x^6+4352/8!*x^8...

%K sign

%O 0,1

%A Patrick Demichel (patrick.demichel(AT)hp.com)

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Last modified September 20 13:36 EDT 2020. Contains 337264 sequences. (Running on oeis4.)