Numbers not divisible by 2, 3 or 5.

Terms

a(0) =1a(1) =7a(2) =11a(3) =13a(4) =17a(5) =19a(6) =23a(7) =29a(8) =31a(9) =37a(10) =41a(11) =43a(12) =47a(13) =49a(14) =53a(15) =59a(16) =61a(17) =67a(18) =71a(19) =73a(20) =77a(21) =79a(22) =83a(23) =89a(24) =91a(25) =97a(26) =101a(27) =103a(28) =107a(29) =109