%I A056130
%S A056130 3,5,17,257,5189,65537,83269,86293,1053953,1066049,1134929,1311749,
%T A056130 1380629,16864513,17060929,17909009,18153809,18171217,21251141,
%U A056130 22103317,289423441,290455889,290735441,336662789,336925957,340873541
%N A056130 Palindromic primes in bases 2 and 4.
%t A056130 Do[If[PrimeQ[n], t = RealDigits[n, 4][[1]]; If[FromDigits[t] == FromDigits[Reverse[t]], 
               s = RealDigits[n, 2][[1]]; If[FromDigits[s] == FromDigits[Reverse[s]], 
               Print[n]]]], {n, 1, 10^8, 2}]
%Y A056130 Cf. A016041 and A029972.
%Y A056130 Sequence in context: A056826 A058910 A023394 this_sequence A078726 A019434 
               A164307
%Y A056130 Adjacent sequences: A056127 A056128 A056129 this_sequence A056131 A056132 
               A056133
%K A056130 nonn,base
%O A056130 1,1
%A A056130 Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 29 2000