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A142209 Primes congruent to 12 mod 41. 2

%I

%S 53,463,709,1201,1283,1447,1693,2267,2677,3169,3251,3907,3989,4153,

%T 4481,4973,5711,6121,6203,6367,6449,7187,7351,7433,8089,8171,8581,

%U 8663,9319,9811,10139,10303,10631,11287,11369,11779,12107,12517,12763,13009,13337

%N Primes congruent to 12 mod 41.

%H Vincenzo Librandi, <a href="/A142209/b142209.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 40n log n. - _Charles R Greathouse IV_, Jul 02 2016

%t Select[Range[12,30000,41],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, May 17 2011 *)

%t Select[Prime[Range[5000]],MemberQ[{12},Mod[#,41]]&] (* _Vincenzo Librandi_, Aug 23 2012 *)

%o (MAGMA) [p: p in PrimesUpTo(16000) | p mod 41 eq 12 ]; // _Vincenzo Librandi_, Aug 23 2012 *)

%o (PARI) is(n)=isprime(n) && n%41==12 \\ _Charles R Greathouse IV_, Jul 02 2016

%Y Cf. A000040, A059236, A142199, A142200, A142208.

%K nonn,easy

%O 1,1

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

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Last modified April 5 10:28 EDT 2020. Contains 333239 sequences. (Running on oeis4.)