Search: id:A029975
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%I A029975
%S A029975 2,3,5,71,107,157,257,271,307,2549,2647,2801,3347,3697,3851,4201,
%T A029975 4397,4649,4951,5399,5651,5749,5903,6449,6701,7451,7703,8053,8501,
%U A029975 8753,9103,9551,10007,10357,10903,11057,11953,12157,12409,13109
%N A029975 Palindromic primes in base 7.
%H A029975 P. De Geest, <a href="http://www.worldofnumbers.com/palpri.htm">World!Of 
               Palindromic Primes</a>
%t A029975 f[n_]:=FromDigits[RealDigits[n,7][[1]]]==FromDigits[Reverse[RealDigits[n,
               7][[1]]]]; lst={}; Do[p=Prime[n]; If[f[p],AppendTo[lst,p]],{n,8!}]; 
               lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 10 2009]
%Y A029975 Sequence in context: A084839 A103110 A042239 this_sequence A042787 A041131 
               A084960
%Y A029975 Adjacent sequences: A029972 A029973 A029974 this_sequence A029976 A029977 
               A029978
%K A029975 nonn,base
%O A029975 1,1
%A A029975 Patrick De Geest (pdg(AT)worldofnumbers.com)

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