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%I #9 Sep 08 2022 08:45:36
%S 113,211,701,1093,1289,1583,1877,2269,2857,3347,3739,4229,4327,4523,
%T 4621,4817,5209,5503,6091,6287,6581,6679,7561,7757,8443,8737,8933,
%U 9227,9521,9619,10501,11383,11579,11677,11971,12853,13049,13147,13441,13931,14029
%N Primes congruent to 15 mod 49.
%H Vincenzo Librandi, <a href="/A142426/b142426.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 42n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t Select[Prime[Range[2500]], MemberQ[{15}, Mod[#,49]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)
%o (Magma) [p: p in PrimesUpTo(16000) | p mod 49 eq 15]; // _Vincenzo Librandi_, Aug 28 2012
%o (PARI) is(n)=isprime(n) && n%49==15 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008
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