a(n) = n^2*(n^9 + 1)/2.

Terms

a(0) =0a(1) =1a(2) =1026a(3) =88578a(4) =2097160a(5) =24414075a(6) =181398546a(7) =988663396a(8) =4294967328a(9) =15690529845a(10) =50000000050a(11) =142655835366a(12) =371504185416a(13) =896080197103