tan(tan(x)-arctan(x))=4/3!*x^3-8/5!*x^5+992/7!*x^7+3456/9!*x^9...
A013443
tan(tan(x)-arctan(x))=4/3!*x^3-8/5!*x^5+992/7!*x^7+3456/9!*x^9...
Terms
- a(0) =4a(1) =-8a(2) =992a(3) =3456a(4) =2799872a(5) =106544128a(6) =37168683008
External references
- oeis: A013443