Number of primes among first 10^n primes that have first and last digits both equal 3 (not counting the prime 3).
A145710
Number of primes among first 10^n primes that have first and last digits both equal 3 (not counting the prime 3).
Terms
- a(0) =0a(1) =4a(2) =32a(3) =278a(4) =2250a(5) =18839a(6) =162662a(7) =1433999a(8) =12811208a(9) =115798814
External references
- oeis: A145710