arcsin(tan(x)*sin(x))=2/2!*x^2+4/4!*x^4+182/6!*x^6+4744/8!*x^8...

A012367

arcsin(tan(x)*sin(x))=2/2!*x^2+4/4!*x^4+182/6!*x^6+4744/8!*x^8...

Terms

    a(0) =2a(1) =4a(2) =182a(3) =4744a(4) =529322a(5) =48105484a(6) =10255687262

External references