Primes having only {2, 3, 4, 5} as digits.

Terms

a(0) =2a(1) =3a(2) =5a(3) =23a(4) =43a(5) =53a(6) =223a(7) =233a(8) =353a(9) =433a(10) =443a(11) =523a(12) =2243a(13) =2333a(14) =2423a(15) =2543a(16) =3253a(17) =3323a(18) =3343a(19) =3433a(20) =3533a(21) =4243a(22) =4253a(23) =4423a(24) =4523a(25) =5233a(26) =5323a(27) =5333a(28) =5443a(29) =22343