Numbers k such that (37*10^k + 341)/9 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =10a(5) =11a(6) =17a(7) =20a(8) =65a(9) =70a(10) =811a(11) =947a(12) =1099a(13) =1487a(14) =1540a(15) =6617a(16) =15067a(17) =18433a(18) =19063a(19) =31462a(20) =131270