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%I #5 May 23 2021 02:50:06
%S 2,3,5,7,13,17,23,29,31,53,59,61,67,73,79,83,89,97,101,107,193,197,
%T 199,211,233,239,241,251,257,269,277,281,293,311,313,337,353,367,373,
%U 383,397,401,409,419,433,443,449,457,461,467,487,491,499,509,787,797,809
%N Primes whose base 4 reversal is also prime.
%H Amiram Eldar, <a href="/A074834/b074834.txt">Table of n, a(n) for n = 1..10000</a>
%t Prime[ Select[ Range[140], PrimeQ[ FromDigits[ Reverse[ IntegerDigits[ Prime[ # ], 4]], 4]] &]]
%Y Cf. A007500, A074832, A074833, A075235, A075236, A075237, A075238, A075239.
%K base,easy,nonn
%O 1,1
%A _Robert G. Wilson v_, Sep 09 2002