a(n) = prime(9*n - 3).

Terms

a(0) =13a(1) =47a(2) =89a(3) =137a(4) =181a(5) =233a(6) =281a(7) =347a(8) =397a(9) =449a(10) =503a(11) =571a(12) =619a(13) =677a(14) =743a(15) =811a(16) =863a(17) =937a(18) =997a(19) =1051a(20) =1109a(21) =1187a(22) =1249a(23) =1303a(24) =1399a(25) =1453a(26) =1511a(27) =1579a(28) =1627a(29) =1709