a(n) = 128*n^2 + 2528*n + 12481.

Terms

a(0) =15137a(1) =18049a(2) =21217a(3) =24641a(4) =28321a(5) =32257a(6) =36449a(7) =40897a(8) =45601a(9) =50561a(10) =55777a(11) =61249a(12) =66977a(13) =72961a(14) =79201a(15) =85697a(16) =92449a(17) =99457a(18) =106721a(19) =114241a(20) =122017a(21) =130049a(22) =138337a(23) =146881a(24) =155681a(25) =164737a(26) =174049a(27) =183617a(28) =193441a(29) =203521