a(n) = Sum_{k=0..n} k! * k^(3*n) * Stirling1(n,k).

A351134

a(n) = Sum_{k=0..n} k! * k^(3*n) * Stirling1(n,k).

Terms

    a(0) =1a(1) =1a(2) =127a(3) =115028a(4) =383611414

External references