a(n) = prime(8*n - 4).

Terms

a(0) =7a(1) =37a(2) =71a(3) =107a(4) =151a(5) =193a(6) =239a(7) =281a(8) =337a(9) =383a(10) =433a(11) =479a(12) =541a(13) =593a(14) =641a(15) =683a(16) =743a(17) =809a(18) =857a(19) =911a(20) =971a(21) =1021a(22) =1069a(23) =1123a(24) =1193a(25) =1249a(26) =1301a(27) =1373a(28) =1439a(29) =1487