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 A351431 #7 Feb 14 2022 01:23:57 %S A351431 1999066711391,2636673539579,3122297178449,4233023119991, %T A351431 4235725694999,4858710857681,5400576157877,5444462267039, %U A351431 5677577653031,7020864564479,7183460847791,7193762869919,7347344126141,7400390925491,7810943851019,7889498850089,7918641256541,8389062763121 %N A351431 Primes followed by a gap of 512. %H A351431 Charles R Greathouse IV, <a href="/A351431/b351431.txt">Table of n, a(n) for n = 1..10000</a> %H A351431 <a href="/index/Pri#gaps">Index entries for primes, gaps between</a>. %Y A351431 Primes followed by power-of-two gaps: A001359 (2), A029710 (4), A031926 (8), A031934 (16), A126784 (32), A204670 (64), A204812 (128), A204813 (256), this sequence (512). %K A351431 nonn %O A351431 1,1 %A A351431 _Charles R Greathouse IV_, Feb 11 2022