G.f.: exp( Sum_{n>=1} x^n/n * Sum_{d|n} 2^(d^2) * n^2/d^2 ).
A262008
G.f.: exp( Sum_{n>=1} x^n/n * Sum_{d|n} 2^(d^2) * n^2/d^2 ).
Terms
- a(0) =1a(1) =2a(2) =14a(3) =202a(4) =16858a(5) =6746346a(6) =11466918526
External references
- oeis: A262008
A262008
G.f.: exp( Sum_{n>=1} x^n/n * Sum_{d|n} 2^(d^2) * n^2/d^2 ).