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A142479 Primes congruent to 5 mod 51. 1

%I #12 Sep 08 2022 08:45:36

%S 5,107,311,617,719,821,1229,1433,1637,2351,2657,2861,2963,3167,3371,

%T 3677,3779,3881,4289,4391,4493,4799,5003,5309,5717,6329,6737,7043,

%U 7247,7349,7451,7757,8369,8573,9491,10103,10613,11633,11939,12041,12143,12347,12653

%N Primes congruent to 5 mod 51.

%H Vincenzo Librandi, <a href="/A142479/b142479.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[2400]], MemberQ[{5}, Mod[#, 51]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)

%t Select[Range[5,13000,51],PrimeQ] (* _Harvey P. Dale_, May 14 2016 *)

%o (Magma) [p: p in PrimesUpTo(13000) | p mod 51 eq 5]; // _Vincenzo Librandi_, Aug 28 2012

%o (PARI) is(n)=isprime(n) && n%51==5 \\ _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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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)