Primes such that the outer 2 digits are n and n+1 and all inner digits are 5, where 0 < n < 9.
A108822
Primes such that the outer 2 digits are n and n+1 and all inner digits are 5, where 0 < n < 9.
Terms
- a(0) =859a(1) =65557a(2) =855555559a(3) =6555555557
External references
- oeis: A108822