a(n) = (n+1)^n * n! * C(1/(n+1), n).

A158886

a(n) = (n+1)^n * n! * C(1/(n+1), n).

Terms

    a(0) =1a(1) =1a(2) =-2a(3) =21a(4) =-504a(5) =21505a(6) =-1432080a(7) =137227545a(8) =-17893715840

External references