Numbers k such that (299*10^k - 17)/3 is prime.

Terms

a(0) =1a(1) =3a(2) =6a(3) =12a(4) =16a(5) =18a(6) =27a(7) =30a(8) =59a(9) =60a(10) =61a(11) =118a(12) =198a(13) =208a(14) =826a(15) =1696a(16) =1813a(17) =4505a(18) =7111a(19) =9715a(20) =11572a(21) =15439a(22) =17406a(23) =55998a(24) =89836a(25) =158544a(26) =199801a(27) =201547