arctan(sin(sinh(x))) = x - 2/3!*x^3 +16/5!*x^5 - 440/7!*x^7 + 20224/9!*x^9 - ....
A012030
arctan(sin(sinh(x))) = x - 2/3!*x^3 +16/5!*x^5 - 440/7!*x^7 + 20224/9!*x^9 - ....
Terms
- a(0) =1a(1) =-2a(2) =16a(3) =-440a(4) =20224a(5) =-1582976a(6) =178612864a(7) =-27969867008
External references
- oeis: A012030