arctan(arctan(x)+sin(x))=2*x-19/3!*x^3+1033/5!*x^5-139921/7!*x^7...

A012976

arctan(arctan(x)+sin(x))=2*x-19/3!*x^3+1033/5!*x^5-139921/7!*x^7...

Terms

    a(0) =2a(1) =-19a(2) =1033a(3) =-139921a(4) =35331409a(5) =-14334032601

External references