sec(sin(sin(x)))=1+1/2!*x^2-3/4!*x^4-27/6!*x^6+1145/8!*x^8...
A012012
sec(sin(sin(x)))=1+1/2!*x^2-3/4!*x^4-27/6!*x^6+1145/8!*x^8...
Terms
- a(0) =1a(1) =1a(2) =-3a(3) =-27a(4) =1145a(5) =-8631a(6) =-1770123a(7) =115778861a(8) =4625206001
External references
- oeis: A012012