a(n) = Sum_{k=0..n} binomial(n+k-1,k) * |Stirling1(n,k)| * k!.

A382830

a(n) = Sum_{k=0..n} binomial(n+k-1,k) * |Stirling1(n,k)| * k!.

Terms

    a(0) =1a(1) =1a(2) =8a(3) =102a(4) =1804a(5) =40890a(6) =1131108a(7) =36948240a(8) =1391945616a(9) =59411849040

External references