sinh(sinh(x)*arctan(x))=2/2!*x^2-4/4!*x^4+230/6!*x^6-7880/8!*x^8...
A012560
sinh(sinh(x)*arctan(x))=2/2!*x^2-4/4!*x^4+230/6!*x^6-7880/8!*x^8...
Terms
- a(0) =2a(1) =-4a(2) =230a(3) =-7880a(4) =680458a(5) =-77968460a(6) =12944005230
External references
- oeis: A012560