Numbers k such that the smoothly undulating palindromic number (72*10^k - 27)/99 is a prime.
A062221
Numbers k such that the smoothly undulating palindromic number (72*10^k - 27)/99 is a prime.
Terms
- a(0) =3a(1) =5a(2) =9a(3) =17a(4) =71a(5) =99a(6) =243a(7) =7595a(8) =9273a(9) =53847
External references
- oeis: A062221