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

Terms

a(0) =2a(1) =3a(2) =5a(3) =23a(4) =53a(5) =223a(6) =233a(7) =353a(8) =523a(9) =2333a(10) =3253a(11) =3323a(12) =3533a(13) =5233a(14) =5323a(15) =5333a(16) =23333a(17) =25253a(18) =25523a(19) =32233a(20) =32323a(21) =32353a(22) =32533a(23) =33223a(24) =33353a(25) =33533a(26) =35323a(27) =35353a(28) =35533a(29) =52223