Expansion of e.g.f. exp(cos(tanh(x))-1) (even powers only).

A298245

Expansion of e.g.f. exp(cos(tanh(x))-1) (even powers only).

Terms

    a(0) =1a(1) =-1a(2) =12a(3) =-327a(4) =15883a(5) =-1202524a(6) =130394253a(7) =-19113418989

External references