arcsinh(tan(x)*sin(x))=2/2!*x^2+4/4!*x^4-58/6!*x^6-1976/8!*x^8...

A012370

arcsinh(tan(x)*sin(x))=2/2!*x^2+4/4!*x^4-58/6!*x^6-1976/8!*x^8...

Terms

    a(0) =2a(1) =4a(2) =-58a(3) =-1976a(4) =116042a(5) =17175244a(6) =-594271858a(7) =-470273780336

External references