G.f.: A(x) = 1 + Sum_{n>=1} x^n*A(x)^(3^n).
A195260
G.f.: A(x) = 1 + Sum_{n>=1} x^n*A(x)^(3^n).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =25a(4) =200a(5) =1948a(6) =23293a(7) =366698a(8) =8669713a(9) =354287410a(10) =26296911212
External references
- oeis: A195260