cosh(cos(x)*arctan(x))=1+1/2!*x^2-19/4!*x^4+445/6!*x^6-14663/8!*x^8...
A012506
cosh(cos(x)*arctan(x))=1+1/2!*x^2-19/4!*x^4+445/6!*x^6-14663/8!*x^8...
Terms
- a(0) =1a(1) =1a(2) =-19a(3) =445a(4) =-14663a(5) =718265a(6) =-50970203a(7) =4876389557a(8) =-548752599567
External references
- oeis: A012506