Primes containing the string 444.

Terms

a(0) =4441a(1) =4447a(2) =14447a(3) =14449a(4) =24443a(5) =44417a(6) =44449a(7) =44453a(8) =44483a(9) =44491a(10) =44497a(11) =54443a(12) =54449a(13) =74441a(14) =74449a(15) =84443a(16) =84449a(17) =94441a(18) =94447a(19) =124447a(20) =134443a(21) =144407a(22) =144409a(23) =144413a(24) =144427a(25) =144439a(26) =144451a(27) =144461a(28) =144479a(29) =144481