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A142811 Primes congruent to 13 mod 61. 1

%I

%S 13,257,379,1721,2087,2819,3307,3673,3917,4283,4649,5381,5503,5869,

%T 6113,6967,7211,7333,7577,7699,8431,9041,10139,10627,10993,11969,

%U 12457,12823,13799,13921,14653,14897,15263,15629,16361,17093,17581,18191,18313,18679

%N Primes congruent to 13 mod 61.

%H Vincenzo Librandi, <a href="/A142811/b142811.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[2400]], MemberQ[{13}, Mod[#, 61]] &] (* _Vincenzo Librandi_, Sep 05 2012 *)

%t Select[Range[13,20000,61],PrimeQ] (* _Harvey P. Dale_, Aug 06 2019 *)

%o (MAGMA) [p: p in PrimesUpTo(19000) | p mod 61 eq 13 ]; // _Vincenzo Librandi_, Sep 05 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

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

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Last modified October 18 03:25 EDT 2021. Contains 348065 sequences. (Running on oeis4.)