Emirps with only composite digits (i.e., 4, 6, 8, 9).

Terms

a(0) =94889a(1) =98849a(2) =98999a(3) =99989a(4) =946949a(5) =949649a(6) =9446989a(7) =9464849a(8) =9466949a(9) =9468869a(10) =9468989a(11) =9484649a(12) =9489899a(13) =9494689a(14) =9496649a(15) =9648889a(16) =9666689a(17) =9688649a(18) =9689689a(19) =9699889a(20) =9844699a(21) =9844889a(22) =9846989a(23) =9864889a(24) =9864949a(25) =9866669