Numbers k such that 10*(11*10^k - 1) + 1 is prime.
A123372
Numbers k such that 10*(11*10^k - 1) + 1 is prime.
Terms
- a(0) =0a(1) =1a(2) =29a(3) =71a(4) =95a(5) =173a(6) =298a(7) =4937a(8) =4982a(9) =15755a(10) =16639a(11) =17621
External references
- oeis: A123372