Expansion of e.g.f. log(1 + sin(x)*x), even powers only.

A009341

Expansion of e.g.f. log(1 + sin(x)*x), even powers only.

Terms

    a(0) =0a(1) =2a(2) =-16a(3) =366a(4) =-17704a(5) =1467370a(6) =-185815884a(7) =33370050910

External references