arcsin(sec(x)*arctan(x))=x+2/3!*x^3+48/5!*x^5+1080/7!*x^7+112000/9!*x^9...

A012803

arcsin(sec(x)*arctan(x))=x+2/3!*x^3+48/5!*x^5+1080/7!*x^7+112000/9!*x^9...

Terms

    a(0) =1a(1) =2a(2) =48a(3) =1080a(4) =112000a(5) =9941120a(6) =2204340864a(7) =473940603136

External references