Smallest nonempty set S containing prime divisors of 9k+10 for each k in S.

Terms

a(0) =7a(1) =11a(2) =13a(3) =17a(4) =19a(5) =23a(6) =29a(7) =31a(8) =37a(9) =41a(10) =43a(11) =47a(12) =53a(13) =59a(14) =61a(15) =67a(16) =71a(17) =73a(18) =79a(19) =83a(20) =97a(21) =101a(22) =103a(23) =107a(24) =109a(25) =113a(26) =127a(27) =139a(28) =149a(29) =151