a(n) = prime(9*n - 2).

Terms

a(0) =17a(1) =53a(2) =97a(3) =139a(4) =191a(5) =239a(6) =283a(7) =349a(8) =401a(9) =457a(10) =509a(11) =577a(12) =631a(13) =683a(14) =751a(15) =821a(16) =877a(17) =941a(18) =1009a(19) =1061a(20) =1117a(21) =1193a(22) =1259a(23) =1307a(24) =1409a(25) =1459a(26) =1523a(27) =1583a(28) =1637a(29) =1721