Expansion of g.f.: exp( Sum_{n>=1} [Sum_{k=0..n} C(n,k)^(n-k+1) * x^k] * x^n/n ).
A181080
Expansion of g.f.: exp( Sum_{n>=1} [Sum_{k=0..n} C(n,k)^(n-k+1) * x^k] * x^n/n ).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =14a(5) =83a(6) =774a(7) =10641a(8) =255918a(9) =14643874a(10) =1752083557a(11) =320079087261
External references
- oeis: A181080