G.f.: Sum_{n>=0} 2^n * (1-x)^(-n^2) / 3^(n+1).
A301311
G.f.: Sum_{n>=0} 2^n * (1-x)^(-n^2) / 3^(n+1).
Terms
- a(0) =1a(1) =10a(2) =370a(3) =22570a(4) =1924270a(5) =210821290a(6) =28223418010
External references
- oeis: A301311
A301311
G.f.: Sum_{n>=0} 2^n * (1-x)^(-n^2) / 3^(n+1).