Expansion of e.g.f. exp(Sum_{k=1..3} (exp(k*x) - 1)).
A355421
Expansion of e.g.f. exp(Sum_{k=1..3} (exp(k*x) - 1)).
Terms
- a(0) =1a(1) =6a(2) =50a(3) =504a(4) =5870a(5) =76872a(6) =1111646a(7) =17522664a(8) =298133054a(9) =5433157512a(10) =105396184478
External references
- oeis: A355421