Numbers k > 0 such that 10^(k+4) - 23 is prime.

A265629

Numbers k > 0 such that 10^(k+4) - 23 is prime.

Terms

    a(0) =7a(1) =13a(2) =19a(3) =31a(4) =157a(5) =761a(6) =3469a(7) =6883a(8) =27677a(9) =34309

External references