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 A053077 #15 Dec 06 2021 03:18:22
%S A053077 247141,689509,1008659,1629809,1658669,2024689,2751041,2811761,
%T A053077 2880949,2921819,3264491,3295069,3311359,3365491,3555311,3668461,
%U A053077 4059271,4412141,4440571,4549351,4619399,4690261,4802989,4955221,5115301
%N A053077 Balanced primes separated from the next lower and next higher prime neighbors by 42.
%H A053077 Zak Seidov, <a href="/A053077/b053077.txt">Table of n, a (n) for n = 1..1000</a>
%F A053077 a(n) = A052198(n) + 42. - _Sean A. Irvine_, Dec 06 2021
%e A053077 247141 is separated from both the next lower prime and the next higher prime by 42.
%t A053077 lst={};Do[p=Prime[n];If[p-Prime[n-1]==Prime[n+1]-p==6*7,AppendTo[lst,p]],{n,2,9!}];lst (* _Vladimir Joseph Stephan Orlovsky_, May 20 2010 *)
%Y A053077 Cf. A052198.
%K A053077 easy,nonn
%O A053077 1,1
%A A053077 _Harvey P. Dale_, Feb 25 2000