Primes having only {3, 6, 8} as digits.

Terms

a(0) =3a(1) =83a(2) =383a(3) =683a(4) =863a(5) =883a(6) =3833a(7) =3863a(8) =6833a(9) =6863a(10) =6883a(11) =8363a(12) =8663a(13) =8863a(14) =33863a(15) =36383a(16) =36683a(17) =36833a(18) =38333a(19) =38833a(20) =63863a(21) =66383a(22) =66683a(23) =66863a(24) =66883a(25) =68633a(26) =68683a(27) =68863a(28) =83383a(29) =83663