arctanh(arcsinh(x)*cos(x))=x-2/3!*x^3-32/5!*x^5+152/7!*x^7+48448/9!*x^9...

A012642

arctanh(arcsinh(x)*cos(x))=x-2/3!*x^3-32/5!*x^5+152/7!*x^7+48448/9!*x^9...

Terms

    a(0) =1a(1) =-2a(2) =-32a(3) =152a(4) =48448a(5) =289408a(6) =-393649024a(7) =-34249082624

External references