Numbers k such that k prefixed by '9' and followed by '3' is prime.

Terms

a(0) =5a(1) =8a(2) =10a(3) =13a(4) =17a(5) =20a(6) =28a(7) =29a(8) =32a(9) =34a(10) =40a(11) =41a(12) =43a(13) =46a(14) =47a(15) =53a(16) =61a(17) =62a(18) =64a(19) =73a(20) =74a(21) =80a(22) =83a(23) =88a(24) =92a(25) =97a(26) =103a(27) =115a(28) =116a(29) =118