cosh(arcsin(sinh(x)))=1+1/2!*x^2+9/4!*x^4+201/6!*x^6+9649/8!*x^8...
A012108
cosh(arcsin(sinh(x)))=1+1/2!*x^2+9/4!*x^4+201/6!*x^6+9649/8!*x^8...
Terms
- a(0) =1a(1) =1a(2) =9a(3) =201a(4) =9649a(5) =809201a(6) =105268089a(7) =19650225401
External references
- oeis: A012108