Primes having only {2, 3, 6, 8} as digits.

Terms

a(0) =2a(1) =3a(2) =23a(3) =83a(4) =223a(5) =233a(6) =263a(7) =283a(8) =383a(9) =683a(10) =823a(11) =863a(12) =883a(13) =2333a(14) =2383a(15) =2633a(16) =2663a(17) =2683a(18) =2833a(19) =3323a(20) =3623a(21) =3823a(22) =3833a(23) =3863a(24) =6263a(25) =6323a(26) =6823a(27) =6833a(28) =6863a(29) =6883