arcsin(arctan(x)+tan(x))=2*x+8/3!*x^3+328/5!*x^5+31712/7!*x^7...

A012999

arcsin(arctan(x)+tan(x))=2*x+8/3!*x^3+328/5!*x^5+31712/7!*x^7...

Terms

    a(0) =2a(1) =8a(2) =328a(3) =31712a(4) =6354304a(5) =2085514752

External references