Expansion of e.g.f. arcsin(x*tan(x/2)) (even powers only).

A296941

Expansion of e.g.f. arcsin(x*tan(x/2)) (even powers only).

Terms

    a(0) =0a(1) =1a(2) =1a(3) =18a(4) =227a(5) =12125a(6) =542448a(7) =55071205a(8) =5492843269a(9) =905996551626

External references