a(n) = Sum_{k=0..n} binomial(n+k-1,k) * (Stirling2(n,k) * k!)^2.
A382847
a(n) = Sum_{k=0..n} binomial(n+k-1,k) * (Stirling2(n,k) * k!)^2.
Terms
- a(0) =1a(1) =1a(2) =14a(3) =579a(4) =48044a(5) =6647405a(6) =1379024730a(7) =400315753159
External references
- oeis: A382847