arcsin(tan(sin(x)))=x+2/3!*x^3+16/5!*x^5+440/7!*x^7+27904/9!*x^9...

A012146

arcsin(tan(sin(x)))=x+2/3!*x^3+16/5!*x^5+440/7!*x^7+27904/9!*x^9...

Terms

    a(0) =1a(1) =2a(2) =16a(3) =440a(4) =27904a(5) =2850176a(6) =425017984a(7) =88153419008

External references