O.g.f.: Sum_{n>=0} (n^4*x)^n/(1-n^4*x)^n * exp(-n^4*x/(1-n^4*x)) / n!.
A222054
O.g.f.: Sum_{n>=0} (n^4*x)^n/(1-n^4*x)^n * exp(-n^4*x/(1-n^4*x)) / n!.
Terms
- a(0) =1a(1) =1a(2) =128a(3) =90621a(4) =193322261a(5) =933620289929
External references
- oeis: A222054