a(n) = 2048n^2 + 128n + 1.

Terms

a(0) =2177a(1) =8449a(2) =18817a(3) =33281a(4) =51841a(5) =74497a(6) =101249a(7) =132097a(8) =167041a(9) =206081a(10) =249217a(11) =296449a(12) =347777a(13) =403201a(14) =462721a(15) =526337a(16) =594049a(17) =665857a(18) =741761a(19) =821761a(20) =905857a(21) =994049a(22) =1086337a(23) =1182721a(24) =1283201a(25) =1387777a(26) =1496449a(27) =1609217a(28) =1726081a(29) =1847041