Primes of the form 8*10^k + 7*R_k, where R_k is the repunit (A002275) of length k.
A093943
Primes of the form 8*10^k + 7*R_k, where R_k is the repunit (A002275) of length k.
Terms
- a(0) =877a(1) =8777777777
External references
- oeis: A093943
A093943
Primes of the form 8*10^k + 7*R_k, where R_k is the repunit (A002275) of length k.