Primes having only {2, 3, 4, 8} as digits.

Terms

a(0) =2a(1) =3a(2) =23a(3) =43a(4) =83a(5) =223a(6) =233a(7) =283a(8) =383a(9) =433a(10) =443a(11) =823a(12) =883a(13) =2243a(14) =2333a(15) =2383a(16) =2423a(17) =2833a(18) =2843a(19) =3323a(20) =3343a(21) =3433a(22) =3823a(23) =3833a(24) =4243a(25) =4283a(26) =4423a(27) =4483a(28) =8233a(29) =8243