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A141859 Primes congruent to 12 mod 13. 1

%I #19 Feb 02 2023 15:47:14

%S 103,181,233,311,337,389,467,571,701,727,857,883,1013,1039,1091,1117,

%T 1429,1481,1559,1637,1663,1741,1871,1949,2027,2053,2131,2287,2339,

%U 2417,2521,2677,2729,2833,2963,3041,3067,3119,3301,3457,3613,3691,3769,3821,3847

%N Primes congruent to 12 mod 13.

%H Vincenzo Librandi, <a href="/A141859/b141859.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 12n log n. - _Charles R Greathouse IV_, Jul 03 2016

%t Select[Range[12, 50000, 13], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 13 2011 *)

%t Select[Prime[Range[600]],Mod[#,13]==12&] (* _Harvey P. Dale_, Feb 02 2023 *)

%o (Magma) [ p: p in PrimesUpTo(5000) | p mod 13 eq 12 ]; // _Vincenzo Librandi_, Apr 19 2011

%o (PARI) is(n)=isprime(n) && n%13==12 \\ _Charles R Greathouse IV_, Jul 03 2016

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_, Jul 11 2008

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Last modified September 6 03:51 EDT 2024. Contains 375702 sequences. (Running on oeis4.)