exp(arctan(arcsinh(x)))=1+x+1/2!*x^2-2/3!*x^3-11/4!*x^4+24/5!*x^5...

A012213

exp(arctan(arcsinh(x)))=1+x+1/2!*x^2-2/3!*x^3-11/4!*x^4+24/5!*x^5...

Terms

    a(0) =1a(1) =1a(2) =1a(3) =-2a(4) =-11a(5) =24a(6) =349a(7) =-664a(8) =-22007a(9) =28416a(10) =2312601a(11) =-942336a(12) =-365164227a(13) =-260697984a(14) =80916522933a(15) =165900454656

External references