A045321 - OEIS

%I #10 Jun 26 2022 23:54:17

%S 2,3,7,11,13,17,23,31,37,41,43,47,53,61,67,71,73,83,97,101,103,107,

%T 113,127,131,137,151,157,163,167,173,181,191,193,197,211,223,227,233,

%U 241,251,257,263,271,277,281,283

%N Primes congruent to {1, 2, 3} (mod 5).

%H Vincenzo Librandi, <a href="/A045321/b045321.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[300]],MemberQ[{1,2,3},Mod[#,5]]&] (* _Vincenzo Librandi_, Aug 07 2012 *)

%o (Magma) [ p: p in PrimesUpTo(500) | p mod 5 in {1,2,3} ]; // _Vincenzo Librandi_, Aug 07 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_