a(0) = 1, a(n) = 15*n^2 + 2 for n>0.

Terms

a(0) =1a(1) =17a(2) =62a(3) =137a(4) =242a(5) =377a(6) =542a(7) =737a(8) =962a(9) =1217a(10) =1502a(11) =1817a(12) =2162a(13) =2537a(14) =2942a(15) =3377a(16) =3842a(17) =4337a(18) =4862a(19) =5417a(20) =6002a(21) =6617a(22) =7262a(23) =7937a(24) =8642a(25) =9377a(26) =10142a(27) =10937a(28) =11762a(29) =12617