Expansion of sin(tan(x)*x)/2.

A024248

Expansion of sin(tan(x)*x)/2.

Terms

    a(0) =0a(1) =1a(2) =4a(3) =-12a(4) =-2272a(5) =-166960a(6) =-13136448a(7) =-1177426880a(8) =-116571720704

External references