arcsinh(sin(sinh(x)))=x-1/3!*x^3+1/5!*x^5-113/7!*x^7+4033/9!*x^9...

A012031

arcsinh(sin(sinh(x)))=x-1/3!*x^3+1/5!*x^5-113/7!*x^7+4033/9!*x^9...

Terms

    a(0) =1a(1) =-1a(2) =1a(3) =-113a(4) =4033a(5) =-307297a(6) =32041153a(7) =-4722808145a(8) =919792817281

External references