E.g.f: Sum_{n>=0} 3^n * 2^(n^2) * exp(-2*2^n*x) * x^n/n!.
A202990
E.g.f: Sum_{n>=0} 3^n * 2^(n^2) * exp(-2*2^n*x) * x^n/n!.
Terms
- a(0) =1a(1) =4a(2) =100a(3) =10648a(4) =4477456a(5) =7339040224
External references
- oeis: A202990
A202990
E.g.f: Sum_{n>=0} 3^n * 2^(n^2) * exp(-2*2^n*x) * x^n/n!.