Expansion of exp(tanh(x)*sinh(x)).

A009271

Expansion of exp(tanh(x)*sinh(x)).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =62a(4) =968a(5) =9962a(6) =557108a(7) =-202018a(8) =851334128a(9) =16341130322

External references