Smallest nonempty set S containing prime divisors of 8k+3 for each k in S.

Terms

a(0) =5a(1) =7a(2) =11a(3) =13a(4) =17a(5) =19a(6) =23a(7) =29a(8) =31a(9) =41a(10) =43a(11) =47a(12) =53a(13) =59a(14) =61a(15) =67a(16) =71a(17) =79a(18) =89a(19) =103a(20) =107a(21) =113a(22) =127a(23) =139a(24) =181a(25) =193a(26) =223a(27) =233a(28) =241a(29) =251