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

A382807

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

Terms

    a(0) =1a(1) =1a(2) =7a(3) =8a(4) =-22400a(5) =-3821176a(6) =733375592

External references