Primes using only the composite digits (4, 6, 8, 9) and all of them.

Terms

a(0) =46489a(1) =46889a(2) =48649a(3) =48869a(4) =64489a(5) =64849a(6) =68449a(7) =68489a(8) =84649a(9) =84869a(10) =88469a(11) =444869a(12) =448969a(13) =449689a(14) =468499a(15) =468869a(16) =468889a(17) =468899a(18) =469849a(19) =486449a(20) =486869a(21) =486949a(22) =488689a(23) =489689a(24) =489869a(25) =496849a(26) =496889a(27) =498469a(28) =498689a(29) =644489