sec(arcsin(x)*arcsin(x))=1+12/4!*x^4+240/6!*x^6+17808/8!*x^8...

A012350

sec(arcsin(x)*arcsin(x))=1+12/4!*x^4+240/6!*x^6+17808/8!*x^8...

Terms

    a(0) =1a(1) =0a(2) =12a(3) =240a(4) =17808a(5) =1637760a(6) =242818752a(7) =48180857088

External references