Primes having only {3, 4, 6} as digits.

Terms

a(0) =3a(1) =43a(2) =433a(3) =443a(4) =463a(5) =643a(6) =3343a(7) =3433a(8) =3463a(9) =3643a(10) =4363a(11) =4463a(12) =4643a(13) =4663a(14) =6343a(15) =33343a(16) =36343a(17) =36433a(18) =36643a(19) =43633a(20) =44633a(21) =46633a(22) =46643a(23) =46663a(24) =63443a(25) =63463a(26) =64333a(27) =64433a(28) =64633a(29) =64663