Primes of the form identical digits preceded by a 4.
A090152
Primes of the form identical digits preceded by a 4.
Terms
- a(0) =41a(1) =43a(2) =47a(3) =433a(4) =499a(5) =4111a(6) =4999a(7) =47777a(8) =49999a(9) =4999999
External references
- oeis: A090152