Expansion of e.g.f. exp(Sum_{k=1..4} (exp(k*x) - 1)).
A355422
Expansion of e.g.f. exp(Sum_{k=1..4} (exp(k*x) - 1)).
Terms
- a(0) =1a(1) =10a(2) =130a(3) =2000a(4) =35054a(5) =684000a(6) =14628190a(7) =338990000a(8) =8438270014a(9) =224070580800
External references
- oeis: A355422