a(n) = Sum_{k=1..n} k^2 * n^k.

A368526

a(n) = Sum_{k=1..n} k^2 * n^k.

Terms

    a(0) =0a(1) =1a(2) =18a(3) =282a(4) =4740a(5) =89355a(6) =1896846a(7) =45050852a(8) =1186829064a(9) =34391135205

External references