128n^2 + 2336n + 10657.

Terms

a(0) =13121a(1) =15841a(2) =18817a(3) =22049a(4) =25537a(5) =29281a(6) =33281a(7) =37537a(8) =42049a(9) =46817a(10) =51841a(11) =57121a(12) =62657a(13) =68449a(14) =74497a(15) =80801a(16) =87361a(17) =94177a(18) =101249a(19) =108577a(20) =116161a(21) =124001a(22) =132097a(23) =140449a(24) =149057a(25) =157921a(26) =167041a(27) =176417a(28) =186049a(29) =195937