|
%I #15 Sep 08 2022 08:45:36
%S 7,109,211,313,619,823,1129,1231,1741,2251,2557,2659,3067,3169,3271,
%T 3373,4597,4801,4903,5107,5209,5413,5821,5923,6229,6637,6841,7351,
%U 7759,7963,8167,8269,8677,8779,9187,9391,9697,9901,10513,11329,11839,11941,12043
%N Primes congruent to 7 mod 51.
%H Vincenzo Librandi, <a href="/A142480/b142480.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 32n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t Select[Prime[Range[2000]],Mod[#,51]==7&] (* _Harvey P. Dale_, Jan 18 2011 *)
%t Select[Prime[Range[2400]], MemberQ[{7}, Mod[#, 51]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)
%o (Magma) [p: p in PrimesUpTo(13000) | p mod 51 eq 7]; // _Vincenzo Librandi_, Aug 28 2012
%o (PARI) is(n)=isprime(n) && n%51==7 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008
|
