Numbers k such that (7*10^k + 113)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =8a(6) =18a(7) =30a(8) =95a(9) =165a(10) =805a(11) =2738a(12) =3038a(13) =5953a(14) =6009a(15) =7205a(16) =9631a(17) =17495a(18) =27745a(19) =28449a(20) =62278a(21) =106516a(22) =130825a(23) =153664