This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A042989 #14 Apr 29 2025 13:36:14
%S A042989 2,3,5,7,11,17,19,23,31,37,47,53,59,61,67,73,79,89,101,103,107,109,
%T A042989 131,137,149,151,157,163,173,179,191,193,199,227,229,233,241,257,263,
%U A042989 269,271,277,283,311,313,317,331,347,353,359,367,373,383,389,397,401,409,431,439,443
%N A042989 Primes congruent to {0, 2, 3, 4, 5} mod 7.
%C A042989 2 and primes congruent to {3,5,7,9,11} mod 14. - _Chai Wah Wu_, Apr 29 2025
%H A042989 Vincenzo Librandi, <a href="/A042989/b042989.txt">Table of n, a(n) for n = 1..1000</a>
%t A042989 Select[Prime[Range[200]],MemberQ[{0,2,3,4,5},Mod[#,7]]&] (* _Vincenzo Librandi_, Aug 09 2012 *)
%o A042989 (Magma) [p: p in PrimesUpTo(500) | p mod 7 in [0, 2, 3, 4, 5]]; // _Vincenzo Librandi_, Aug 09 2012
%Y A042989 Cf. A000040.
%K A042989 nonn,easy
%O A042989 1,1
%A A042989 _N. J. A. Sloane_