a(n) = Sum_{k=0..n} k^(k+n) * Stirling2(n,k).

A351181

a(n) = Sum_{k=0..n} k^(k+n) * Stirling2(n,k).

Terms

    a(0) =1a(1) =1a(2) =17a(3) =826a(4) =79107a(5) =12553011a(6) =2979141058a(7) =988163147091

External references