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 A252728 #16 Aug 06 2021 01:57:23
%S A252728 70872,191056,204048,215955,216351,251872,266249,346159,431099,433456,
%T A252728 443366,461372,517528,654361,664677,793519,841521,865347,904987,
%U A252728 918479,1056902,1060733,1063487,1134245,1140824,1158526
%N A252728 Numbers k such that exactly 5 consecutive primes starting with prime(k) are congruent to the same value modulo 7.
%C A252728 Or, numbers k such A039705(k) = ... = A039705(k+4), but not A039705(k+5).
%H A252728 Zak Seidov, <a href="/A252728/b252728.txt">Table of n, a(n) for n = 1..300</a>
%e A252728 k=70872, {A000040(k), ..., A000040(k+4)} = {894287, 894301, 894329, 894343, 894371} == 2 (mod 7).
%Y A252728 Cf. A000040, A039705.
%K A252728 nonn
%O A252728 1,1
%A A252728 _Zak Seidov_, Feb 16 2015