sin(arctan(x)^2)=2/2!*x^2-16/4!*x^4+248/6!*x^6-3456/8!*x^8...
A012457
sin(arctan(x)^2)=2/2!*x^2-16/4!*x^4+248/6!*x^6-3456/8!*x^8...
Terms
- a(0) =2a(1) =-16a(2) =248a(3) =-3456a(4) =-406368a(5) =123982080a(6) =-31807263360
External references
- oeis: A012457