Primes of the form identical digits preceded by a 1.
A090149
Primes of the form identical digits preceded by a 1.
Terms
- a(0) =11a(1) =13a(2) =17a(3) =19a(4) =199a(5) =1777a(6) =1999a(7) =199999a(8) =19999999a(9) =1777777777
External references
- oeis: A090149