G.f.: Sum_{n>=0} 2^n * x^n * (3^n + 2^n)^n / (2^n + 3^n*x)^(n+1) = Sum_{n>=0} a(n) * x^n / 2^(n^2).
A306410
G.f.: Sum_{n>=0} 2^n * x^n * (3^n + 2^n)^n / (2^n + 3^n*x)^(n+1) = Sum_{n>=0} a(n) * x^n / 2^(n^2).
Terms
- a(0) =1a(1) =3a(2) =65a(3) =14499a(4) =33321281a(5) =707203658403
External references
- oeis: A306410