Numbers k such that 10^k + prime(k) is prime.

A256451

Numbers k such that 10^k + prime(k) is prime.

Terms

    a(0) =2a(1) =4a(2) =27a(3) =63a(4) =756a(5) =899a(6) =8088a(7) =15216a(8) =47969a(9) =50943

External references