Numbers k such that (418*10^k + 23)/9 is prime.

Terms

a(0) =1a(1) =3a(2) =4a(3) =7a(4) =16a(5) =33a(6) =37a(7) =226a(8) =295a(9) =313a(10) =429a(11) =607a(12) =2113a(13) =2317a(14) =2721a(15) =2887a(16) =2907a(17) =2953a(18) =6058a(19) =11971a(20) =30865a(21) =58923a(22) =98199a(23) =105343a(24) =132441