arcsinh(arctan(x)*arcsin(x))=2/2!*x^2-4/4!*x^4+38/6!*x^6-264/8!*x^8...

A012438

arcsinh(arctan(x)*arcsin(x))=2/2!*x^2-4/4!*x^4+38/6!*x^6-264/8!*x^8...

Terms

    a(0) =2a(1) =-4a(2) =38a(3) =-264a(4) =251082a(5) =-20187660a(6) =3240768750a(7) =-246050691600

External references