sinh(sin(arctanh(x)))=x+2/3!*x^3+16/5!*x^5+216/7!*x^7-1280/9!*x^9...
A012056
sinh(sin(arctanh(x)))=x+2/3!*x^3+16/5!*x^5+216/7!*x^7-1280/9!*x^9...
Terms
- a(0) =1a(1) =2a(2) =16a(3) =216a(4) =-1280a(5) =-1141504a(6) =-263392128a(7) =-64804059904
External references
- oeis: A012056