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

A012597

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

Terms

    a(0) =2a(1) =-8a(2) =-40a(3) =4352a(4) =8608a(5) =-38439040a(6) =4405714560a(7) =425680207872

External references