Numbers k such that (41*10^k - 383)/9 is prime.

Terms

a(0) =1a(1) =3a(2) =5a(3) =6a(4) =21a(5) =39a(6) =114a(7) =239a(8) =246a(9) =348a(10) =906a(11) =1115a(12) =2801a(13) =2958a(14) =2982a(15) =4275a(16) =6581a(17) =8736a(18) =27051a(19) =115523a(20) =124335