Numbers k such that 2*10^k - 43 is prime.

Terms

a(0) =2a(1) =6a(2) =8a(3) =13a(4) =24a(5) =38a(6) =42a(7) =47a(8) =324a(9) =338a(10) =3957a(11) =4243a(12) =4623a(13) =4692a(14) =4824a(15) =5741a(16) =7611a(17) =8403a(18) =10499a(19) =21386a(20) =56083a(21) =132493a(22) =135083a(23) =136057a(24) =138162a(25) =193981