Primes having only {3, 5, 6, 9} as digits.

Terms

a(0) =3a(1) =5a(2) =53a(3) =59a(4) =353a(5) =359a(6) =563a(7) =569a(8) =593a(9) =599a(10) =653a(11) =659a(12) =953a(13) =3359a(14) =3533a(15) =3539a(16) =3559a(17) =3593a(18) =3659a(19) =5333a(20) =5393a(21) =5399a(22) =5563a(23) =5569a(24) =5639a(25) =5653a(26) =5659a(27) =5669a(28) =5693a(29) =5939