G.f.: A(x) = exp( Sum_{n>=1} A(2^n*x)^n * x^n/n ).
A157675
G.f.: A(x) = exp( Sum_{n>=1} A(2^n*x)^n * x^n/n ).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =19a(4) =237a(5) =5741a(6) =270857a(7) =25099497a(8) =4605241487
External references
- oeis: A157675
A157675
G.f.: A(x) = exp( Sum_{n>=1} A(2^n*x)^n * x^n/n ).