Numbers k such that 3*10^k - 13 is prime.

Terms

a(0) =1a(1) =13a(2) =16a(3) =19a(4) =23a(5) =25a(6) =29a(7) =30a(8) =34a(9) =53a(10) =61a(11) =89a(12) =111a(13) =191a(14) =376a(15) =1918a(16) =2889a(17) =12304a(18) =17939a(19) =18053a(20) =31740a(21) =56575a(22) =65899