Primes such that the outer 2 digits are n and n+1 and all inner digits are 4, where 0 < n < 9.
A108821
Primes such that the outer 2 digits are n and n+1 and all inner digits are 4, where 0 < n < 9.
Terms
- a(0) =647a(1) =24443a(2) =84449a(3) =644447a(4) =24444443a(5) =64444444447
External references
- oeis: A108821