The least k such that precisely n near-repunit primes can be formed from (10^k-1)/9 by changing one digit from 1 to 0.
A065083
The least k such that precisely n near-repunit primes can be formed from (10^k-1)/9 by changing one digit from 1 to 0.
Terms
- a(0) =1a(1) =3a(2) =8a(3) =24a(4) =20a(5) =12a(6) =488a(7) =42a(8) =162a(9) =4848a(10) =642a(11) =1682
External references
- oeis: A065083