Primes such that the outer 2 digits are n and n-1 and all inner digits are 5, where 0 < n < 9.
A108833
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) =251a(1) =857a(2) =2551a(3) =45553a(4) =255551a(5) =2555551a(6) =45555553a(7) =855555557
External references
- oeis: A108833