Numbers k such that (13*10^k + 179)/3 is prime.

Terms

a(0) =1a(1) =5a(2) =8a(3) =21a(4) =37a(5) =61a(6) =62a(7) =126a(8) =188a(9) =221a(10) =253a(11) =523a(12) =654a(13) =1875a(14) =2372a(15) =2394a(16) =3073a(17) =4158a(18) =6663a(19) =6881a(20) =167911