A029982 - OEIS

%I #17 Aug 11 2024 14:41:30

%S 2,3,5,7,11,13,241,271,331,421,467,557,587,617,647,919,1009,1039,1069,

%T 1597,1627,1657,1747,1777,1823,1913,1973,2003,2531,2591,2621,2953,

%U 3209,3299,3329,3359,52201,53101,53551,56041,56941,60331,61471

%N Palindromic primes in base 15.

%H John Cerkan, <a href="/A029982/b029982.txt">Table of n, a(n) for n = 1..10000</a>

%H P. De Geest, <a href="https://www.worldofnumbers.com/palpri.htm">World!Of Palindromic Primes</a>

%t pal15Q[n_]:=Module[{idn15=IntegerDigits[n,15]}, idn15==Reverse[idn15]]; Select[Prime[Range[7500]],pal15Q]  (* _Harvey P. Dale_, Mar 01 2011 *)

%K nonn,base

%O 1,1

%A _Patrick De Geest_