Numbers k such that the smoothly undulating palindromic number (74*10^k - 47)/99 is a prime.
A062223
Numbers k such that the smoothly undulating palindromic number (74*10^k - 47)/99 is a prime.
Terms
- a(0) =5a(1) =17a(2) =2069a(3) =6815a(4) =20417a(5) =25745
External references
- oeis: A062223