arctan(arctan(x)*sin(x))=2/2!*x^2-12/4!*x^4-50/6!*x^6+12936/8!*x^8...
A012423
arctan(arctan(x)*sin(x))=2/2!*x^2-12/4!*x^4-50/6!*x^6+12936/8!*x^8...
Terms
- a(0) =0a(1) =2a(2) =-12a(3) =-50a(4) =12936a(5) =-643142a(6) =-60323780a(7) =22895524678
External references
- oeis: A012423