Numbers k such that (13*10^k + 83) / 3 is prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =7a(4) =17a(5) =18a(6) =25a(7) =60a(8) =64a(9) =66a(10) =118a(11) =125a(12) =1021a(13) =1901a(14) =2273a(15) =2524a(16) =6048a(17) =7098a(18) =8281a(19) =11634a(20) =13843a(21) =16098a(22) =18652a(23) =18661a(24) =20570a(25) =32291a(26) =34181a(27) =59928a(28) =65297a(29) =86546