Numbers k such that 6*10^k-11 is prime.

Terms

a(0) =9a(1) =15a(2) =21a(3) =44a(4) =58a(5) =64a(6) =96a(7) =108a(8) =138a(9) =160a(10) =222a(11) =534a(12) =2060a(13) =2446a(14) =3884a(15) =8794a(16) =9879a(17) =18303