sinh(tan(arcsinh(x))) = x+2/3!*x^3+16/5!*x^5+216/7!*x^7+6400/9!*x^9...

A012164

sinh(tan(arcsinh(x))) = x+2/3!*x^3+16/5!*x^5+216/7!*x^7+6400/9!*x^9...

Terms

    a(0) =1a(1) =2a(2) =16a(3) =216a(4) =6400a(5) =125696a(6) =18156672a(7) =-930421504a(8) =394852151296

External references