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

Terms

a(0) =0a(1) =1a(2) =513a(3) =29526a(4) =524290a(5) =4882815a(6) =30233091a(7) =141237628a(8) =536870916a(9) =1743392205a(10) =5000000005a(11) =12968712306a(12) =30958682118a(13) =68929245931a(14) =144627327495a(15) =288325195320a(16) =549755813896