Numbers k such that (17*10^k + 43)/3 is prime.

Terms

a(0) =1a(1) =4a(2) =5a(3) =6a(4) =7a(5) =12a(6) =23a(7) =34a(8) =160a(9) =719a(10) =725a(11) =2568a(12) =3095a(13) =3520a(14) =3582a(15) =3791a(16) =4198a(17) =5236a(18) =15445a(19) =26431a(20) =33120a(21) =36028