a(n) = 5651522*n^2 - 8761372*n + 3395619.

Terms

a(0) =285769a(1) =8478963a(2) =27975201a(3) =58774483a(4) =100876809a(5) =154282179a(6) =218990593a(7) =295002051a(8) =382316553a(9) =480934099a(10) =590854689a(11) =712078323a(12) =844605001a(13) =988434723a(14) =1143567489a(15) =1310003299a(16) =1487742153a(17) =1676784051a(18) =1877128993a(19) =2088776979a(20) =2311728009