E.g.f.: Sum_{n>=0} 2^n * sinh(n*x)^n.

A320419

E.g.f.: Sum_{n>=0} 2^n * sinh(n*x)^n.

Terms

    a(0) =1a(1) =2a(2) =32a(3) =1298a(4) =98816a(5) =12116642a(6) =2181373952a(7) =541793612978

External references