Numbers k such that 3*10^k + 77 is prime.

Terms

a(0) =1a(1) =6a(2) =9a(3) =10a(4) =11a(5) =16a(6) =17a(7) =21a(8) =108a(9) =180a(10) =324a(11) =340a(12) =606a(13) =700a(14) =1857a(15) =2447a(16) =2658a(17) =11055a(18) =16177a(19) =16439a(20) =18767a(21) =33173a(22) =47842a(23) =105582a(24) =107389a(25) =279271