sin(arctanh(x)+arcsin(x))=2*x-5/3!*x^3-55/5!*x^5-1535/7!*x^7...

A013171

sin(arctanh(x)+arcsin(x))=2*x-5/3!*x^3-55/5!*x^5-1535/7!*x^7...

Terms

    a(0) =2a(1) =-5a(2) =-55a(3) =-1535a(4) =-80695a(5) =-6860075a(6) =-859242475a(7) =-148907237375

External references