Expansion of e.g.f. sin(x)*sin(sinh(x)) (even powers only).

A009547

Expansion of e.g.f. sin(x)*sin(sinh(x)) (even powers only).

Terms

    a(0) =0a(1) =2a(2) =-4a(3) =-42a(4) =-8a(5) =5354a(6) =99956a(7) =22974a(8) =-72550928a(9) =-3076799278a(10) =-44239291156

External references