E.g.f.: exp( Sum_{n>=1} x^(3*n) / n^3 ) = Sum_{n>=0} a(n) * x^(3*n) / (3*n)!.
A258873
E.g.f.: exp( Sum_{n>=1} x^(3*n) / n^3 ) = Sum_{n>=0} a(n) * x^(3*n) / (3*n)!.
Terms
- a(0) =1a(1) =6a(2) =450a(3) =119280a(4) =78863400a(5) =109520755344
External references
- oeis: A258873