a(n) = 1482401250*n^2 - 2793393900*n + 1315947601.

Terms

a(0) =4954951a(1) =1658764801a(2) =6277377151a(3) =13860792001a(4) =24409009351a(5) =37922029201a(6) =54399851551a(7) =73842476401a(8) =96249903751a(9) =121622133601a(10) =149959165951a(11) =181261000801a(12) =215527638151a(13) =252759078001a(14) =292955320351a(15) =336116365201a(16) =382242212551