E.g.f.: Sum_{n>=0} tanh(n*x)^n.
A221077
E.g.f.: Sum_{n>=0} tanh(n*x)^n.
Terms
- a(0) =1a(1) =1a(2) =8a(3) =160a(4) =5888a(5) =345856a(6) =29677568a(7) =3502489600a(8) =544181977088
External references
- oeis: A221077
A221077
E.g.f.: Sum_{n>=0} tanh(n*x)^n.