a(n) = Sum_{k=0..n} (-1)^k * binomial(n, k) * (n - k)^(2*n + 1).
A367392
a(n) = Sum_{k=0..n} (-1)^k * binomial(n, k) * (n - k)^(2*n + 1).
Terms
- a(0) =0a(1) =1a(2) =30a(3) =1806a(4) =186480a(5) =29607600a(6) =6711344640
External references
- oeis: A367392