tanh(sin(arcsinh(x)))=x-4/3!*x^3+76/5!*x^5-3312/7!*x^7+255952/9!*x^9...

A012041

tanh(sin(arcsinh(x)))=x-4/3!*x^3+76/5!*x^5-3312/7!*x^7+255952/9!*x^9...

Terms

    a(0) =1a(1) =-4a(2) =76a(3) =-3312a(4) =255952a(5) =-30728512a(6) =5281229760

External references