cos(cos(x)*arcsin(x))=1-1/2!*x^2+9/4!*x^4-105/6!*x^6+1393/8!*x^8...

A012485

cos(cos(x)*arcsin(x))=1-1/2!*x^2+9/4!*x^4-105/6!*x^6+1393/8!*x^8...

Terms

    a(0) =1a(1) =-1a(2) =9a(3) =-105a(4) =1393a(5) =-71025a(6) =-898887a(7) =-455252889a(8) =-75822681503

External references