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A012823 arcsin(sec(x)*arcsinh(x))=x+3/3!*x^3+53/5!*x^5+1855/7!*x^7... 0

%I

%S 1,3,53,1855,156425,19537595,3987121981,1087120051511,408148372272017,

%T 193531749818796403,116081047496759766725,84538055378229508493871,

%U 74205177566923695709271961

%N arcsin(sec(x)*arcsinh(x))=x+3/3!*x^3+53/5!*x^5+1855/7!*x^7...

%K nonn

%O 0,2

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

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Last modified May 26 20:51 EDT 2022. Contains 354092 sequences. (Running on oeis4.)