sec(sinh(x)*cos(x))=1+1/2!*x^2-3/4!*x^4-123/6!*x^6-455/8!*x^8...
A012569
sec(sinh(x)*cos(x))=1+1/2!*x^2-3/4!*x^4-123/6!*x^6-455/8!*x^8...
Terms
- a(0) =1a(1) =1a(2) =-3a(3) =-123a(4) =-455a(5) =162889a(6) =7941813a(7) =-647037363a(8) =-141890950799a(9) =176381997457
External references
- oeis: A012569