Numbers k such that (101*10^k - 17)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =15a(3) =17a(4) =26a(5) =41a(6) =56a(7) =59a(8) =121a(9) =137a(10) =224a(11) =506a(12) =611a(13) =836a(14) =937a(15) =1079a(16) =1829a(17) =2315a(18) =2666a(19) =2879a(20) =6661a(21) =7167a(22) =14021a(23) =15459a(24) =32924a(25) =73346a(26) =176815a(27) =177302