sech(sec(x)*arcsin(x))=1-1/2!*x^2-11/4!*x^4-85/6!*x^6+4457/8!*x^8...
A012794
sech(sec(x)*arcsin(x))=1-1/2!*x^2-11/4!*x^4-85/6!*x^6+4457/8!*x^8...
Terms
- a(0) =1a(1) =-1a(2) =-11a(3) =-85a(4) =4457a(5) =456055a(6) =19404317a(7) =-2130838749a(8) =-709981721647
External references
- oeis: A012794