arctan(arcsin(x)*arcsin(x))=2/2!*x^2+8/4!*x^4-112/6!*x^6-8832/8!*x^8...

A012343

arctan(arcsin(x)*arcsin(x))=2/2!*x^2+8/4!*x^4-112/6!*x^6-8832/8!*x^8...

Terms

    a(0) =2a(1) =8a(2) =-112a(3) =-8832a(4) =-27648a(5) =71731200a(6) =8459581440a(7) =-999488716800

External references