arcsinh(sin(tanh(x)))=x-4/3!*x^3+76/5!*x^5-3536/7!*x^7+317392/9!*x^9...

A012047

arcsinh(sin(tanh(x)))=x-4/3!*x^3+76/5!*x^5-3536/7!*x^7+317392/9!*x^9...

Terms

    a(0) =1a(1) =-4a(2) =76a(3) =-3536a(4) =317392a(5) =-47590720a(6) =10785422272

External references