A142621 - OEIS

%I #9 Sep 08 2022 08:45:37

%S 83,193,523,743,853,1733,2063,2393,2503,2833,3163,3823,4153,4373,4483,

%T 4703,4813,5693,6133,6353,6793,7013,7673,8443,8663,9103,9323,9433,

%U 10093,10313,10753,10973,11083,11633,11743,12073,12953,13063,13613,13723,14713,15263

%N Primes congruent to 28 mod 55.

%H Vincenzo Librandi, <a href="/A142621/b142621.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[2500]], MemberQ[{28}, Mod[#, 55]] &] (* _Vincenzo Librandi_, Aug 31 2012 *)

%t Select[Range[28,15500,55],PrimeQ] (* _Harvey P. Dale_, Jul 02 2021 *)

%o (Magma) [p: p in PrimesUpTo(16000) | p mod 55 eq 28]; // _Vincenzo Librandi_, Aug 31 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

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