Expansion of sin(sin(sinh(x))).

A009471

Expansion of sin(sin(sinh(x))).

Terms

    a(0) =1a(1) =-1a(2) =-7a(3) =111a(4) =1073a(5) =-94337a(6) =-2853783a(7) =123530351a(8) =9169805409a(9) =-451648395649

External references