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 A184984 #8 Mar 30 2012 17:23:04
%S A184984 33803689,52939759,65996479,71880637,79817581,80793439,81287677,
%T A184984 84607141,89994097,92593183,92769997,107410441,117025291,118259467,
%U A184984 124984549,132269143,136015309,137648059,139701421,140811193,142800139
%N A184984 Primes followed by a gap of 160 = nextprime(p)-p.
%H A184984 <a href="/index/Pri#gaps">Index entries for primes, gaps between</a>.
%o A184984 (PARI) list_gaps(g=160,f,N=100)={my(p=0); for(c=1, N, while(g+p!=p=nextprime(p+1), ); if(f,write(f".txt",c" ",p-g),print1(", "p-g)))}
%K A184984 nonn
%O A184984 1,1
%A A184984 _M. F. Hasler_, Jan 19 2012