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 A042997 #16 Jun 26 2022 23:16:36
%S A042997 2,3,5,11,13,17,19,23,31,37,41,47,53,59,61,67,73,79,83,89,97,101,103,
%T A042997 107,109,131,137,139,149,151,157,163,167,173,179,181,191,193,199,223,
%U A042997 227,229,233,241,251,257,263,269,271,277,283,293,307,311,313,317
%N A042997 Primes congruent to {2, 3, 4, 5, 6} (mod 7).
%H A042997 Vincenzo Librandi, <a href="/A042997/b042997.txt">Table of n, a(n) for n = 1..8000</a>
%t A042997 Select[Prime[Range[120]], MemberQ[{2, 3, 4, 5, 6}, Mod[#, 7]] &] (* _Vladimir Joseph Stephan Orlovsky_, Feb 18 2012 *)
%Y A042997 Cf. A179475 (moduli).
%K A042997 nonn
%O A042997 1,1
%A A042997 _N. J. A. Sloane_