Primes whose digits do not appear in two previous terms.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =23a(6) =47a(7) =59a(8) =61a(9) =73a(10) =89a(11) =101a(12) =223a(13) =449a(14) =557a(15) =601a(16) =823a(17) =947a(18) =1051a(19) =2333a(20) =4447a(21) =5009a(22) =6113a(23) =7247a(24) =8009a(25) =11113a(26) =22247a(27) =50069a(28) =81131a(29) =222247