a(n) = n*((n+1)^n - n^(n-1)).

A218089

a(n) = n*((n+1)^n - n^(n-1)).

Terms

    a(0) =1a(1) =14a(2) =165a(3) =2244a(4) =35755a(5) =659238a(6) =13856521a(7) =327596552a(8) =8612579511a(9) =249374246010

External references