a(n) = Sum_{k=0..n} (-1)^k*binomial(n,k)^k.

A295611

a(n) = Sum_{k=0..n} (-1)^k*binomial(n,k)^k.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =6a(4) =-30a(5) =-280a(6) =35070a(7) =-2508268a(8) =-47103462a(9) =241470400824

External references