G.f.: A(x) = 1 + Sum_{n>=1} x^n*A(x)^(3^(n-1)).
A195259
G.f.: A(x) = 1 + Sum_{n>=1} x^n*A(x)^(3^(n-1)).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =25a(5) =138a(6) =1036a(7) =11270a(8) =194105a(9) =5600367a(10) =275058868a(11) =22805688464
External references
- oeis: A195259