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Primes p=n/2 such that 7n+3 and 3n+7 are primes.
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%I #6 Mar 10 2022 18:56:10

%S 2,5,11,17,29,37,61,67,71,89,167,191,199,229,269,277,311,331,337,347,

%T 379,389,419,431,509,541,577,587,617,631,691,709,757,797,809,821,929,

%U 941,977,991,1069,1091,1117,1129,1217,1277,1279,1289,1291,1367,1439

%N Primes p=n/2 such that 7n+3 and 3n+7 are primes.

%H Harvey P. Dale, <a href="/A124850/b124850.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[250]],AllTrue[{14#+3,6#+7},PrimeQ]&] (* _Harvey P. Dale_, Mar 10 2022 *)

%Y Cf. A089033, A089953, A124849.

%K nonn

%O 1,1

%A _Zak Seidov_, Nov 10 2006