Number of primes p in the range 9 < p <= prime(10^n) that begin and end with the same digit.
A145713
Number of primes p in the range 9 < p <= prime(10^n) that begin and end with the same digit.
Terms
- a(0) =1a(1) =10a(2) =105a(3) =1180a(4) =14143a(5) =158036a(6) =1703161a(7) =17520558a(8) =157563619a(9) =1431557207
External references
- oeis: A145713