Primes that contain digits 2 and 3 only.

Terms

a(0) =2a(1) =3a(2) =23a(3) =223a(4) =233a(5) =2333a(6) =3323a(7) =23333a(8) =32233a(9) =32323a(10) =33223a(11) =222323a(12) =232333a(13) =233323a(14) =323233a(15) =323333a(16) =333233a(17) =333323a(18) =2222333a(19) =2223233a(20) =2232323a(21) =2233223a(22) =2332333a(23) =2333323a(24) =3222223a(25) =3223223a(26) =3223333a(27) =3233323a(28) =3233333a(29) =3332233