G.f.: exp( Sum_{n>=1} (3^n + A(x))^n * x^n/n ).
A202630
G.f.: exp( Sum_{n>=1} (3^n + A(x))^n * x^n/n ).
Terms
- a(0) =1a(1) =4a(2) =62a(3) =7646a(4) =11346032a(5) =173032723944
External references
- oeis: A202630
A202630
G.f.: exp( Sum_{n>=1} (3^n + A(x))^n * x^n/n ).