sec(sin(tan(x)))=1+1/2!*x^2+9/4!*x^4+153/6!*x^6+2993/8!*x^8...
A012017
sec(sin(tan(x)))=1+1/2!*x^2+9/4!*x^4+153/6!*x^6+2993/8!*x^8...
Terms
- a(0) =1a(1) =1a(2) =9a(3) =153a(4) =2993a(5) =-72111a(6) =-33331719a(7) =-7328604631
External references
- oeis: A012017