arcsinh(arctanh(x)*cos(x))=x-2/3!*x^3+28/5!*x^5-520/7!*x^7+59728/9!*x^9...

A012745

arcsinh(arctanh(x)*cos(x))=x-2/3!*x^3+28/5!*x^5-520/7!*x^7+59728/9!*x^9...

Terms

    a(0) =1a(1) =-2a(2) =28a(3) =-520a(4) =59728a(5) =-3842720a(6) =963273920a(7) =-151564390016

External references