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 A126724 #15 Apr 19 2020 08:35:53
%S A126724 13626257,17652013,22790357,25180321,27980837,33384517,35560009,
%T A126724 37369531,39892037,40794049,44310817,49444277,57482767,58471841,
%U A126724 59300629,60271357,60866807,61097723,63032843,64645307,67109773,67396057,71082149,71470507
%N A126724 Primes p such that q-p = 150, where q is the next prime after p.
%H A126724 R. J. Mathar, <a href="/A126724/b126724.txt">Table of n, a(n) for n = 1..84</a>
%H A126724 <a href="/index/Pri#gaps">Index entries for primes, gaps between</a>
%t A126724 a = {}; Do[If[Prime[x + 1] - Prime[x] == 150, AppendTo[a, Prime[x]]], {x, 1, 10000}]; a
%o A126724 (PARI) p=0; g=150; for(c=1,100, while(g+p!=p=nextprime(p+1),); write("gap-150.txt", c" "p-g)) \\ _M. F. Hasler_, Jan 18 2012
%K A126724 nonn
%O A126724 1,1
%A A126724 _Rémi Eismann_, Feb 13 2007