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

Terms

a(0) =2a(1) =5a(2) =8a(3) =12a(4) =15a(5) =18a(6) =20a(7) =30a(8) =80a(9) =143a(10) =152a(11) =164a(12) =176a(13) =239a(14) =291a(15) =324a(16) =504a(17) =594a(18) =983a(19) =2894a(20) =22226a(21) =35371a(22) =58437a(23) =67863a(24) =180979