|
%I #22 Sep 08 2022 08:44:47
%S 3,7,13,31,37,43,67,73,79,109,139,157,163,181,193,211,223,229,241,271,
%T 277,367,373,379,397,421,433,439,457,463,523,541,571,577,601,607,661,
%U 673,709,727,757,769,787,829,853,907,937,967,991,1039,1063,1117,1153,1213
%N Primes p such that 7*p + 10 is also prime.
%H Vincenzo Librandi, <a href="/A023227/b023227.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Prime@Range@500, PrimeQ[7 # + 10] &] (* _Vincenzo Librandi_, May 19 2014 *)
%o (Magma) [n: n in [0..1000] | IsPrime(n) and IsPrime(7*n+10)]; // _Vincenzo Librandi_, Nov 20 2010
%K nonn,easy
%O 1,1
%A _David W. Wilson_
|
