Near-repdigit primes with 3 as repeated digit.

Terms

a(0) =233a(1) =313a(2) =331a(3) =337a(4) =353a(5) =373a(6) =383a(7) =433a(8) =733a(9) =2333a(10) =3313a(11) =3323a(12) =3331a(13) =3343a(14) =3373a(15) =3433a(16) =3533a(17) =3733a(18) =3833a(19) =5333a(20) =7333a(21) =23333a(22) =31333a(23) =33331a(24) =33343a(25) =33353a(26) =33533a(27) =38333a(28) =313333a(29) =323333