Primes having only {4, 5, 8, 9} as digits.

Terms

a(0) =5a(1) =59a(2) =89a(3) =449a(4) =499a(5) =599a(6) =859a(7) =4549a(8) =4889a(9) =4999a(10) =5449a(11) =5849a(12) =8599a(13) =8849a(14) =8999a(15) =9859a(16) =9949a(17) =44449a(18) =44549a(19) =44959a(20) =45589a(21) =45599a(22) =45949a(23) =45959a(24) =45989a(25) =48449a(26) =48589a(27) =48859a(28) =48889a(29) =48989