a(n) = prime(10*n - 2).

Terms

a(0) =19a(1) =61a(2) =107a(3) =163a(4) =223a(5) =271a(6) =337a(7) =397a(8) =457a(9) =521a(10) =593a(11) =647a(12) =719a(13) =787a(14) =857a(15) =929a(16) =997a(17) =1061a(18) =1123a(19) =1213a(20) =1283a(21) =1361a(22) =1439a(23) =1493a(24) =1571a(25) =1627a(26) =1721a(27) =1789a(28) =1877a(29) =1973