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 A057330 #33 Apr 03 2023 10:36:09 %S A057330 2,2,2,1531,1531,16651,16651,15514861,857095381,205528443121, %T A057330 1389122693971,216857744866621,758083947856951,69257563144280941, %U A057330 69257563144280941,3203000719597029781 %N A057330 First member of a prime n-tuplet in a 2p-1 progression. %C A057330 Initial terms of A000040, A005382, A057326, A057327, A057328, A057329. %H A057330 Dirk Augustin, <a href="http://primerecords.dk/Cunningham_Chain_records.htm#smallest">Smallest existing Cunningham Chains of given length</a> %H A057330 Chris Caldwell, <a href="https://t5k.org/glossary/page.php?sort=CunninghamChain">The Prime Glossary: Cunningham chain</a> %H A057330 Tony Forbes, <a href="https://members.loria.fr/PZimmermann/records/cunningham16">Cunningham Chain of length 16</a>, Dec 05 1997 %H A057330 <a href="/index/Pri#primes_AP">Index entries for sequences related to primes in arithmetic progressions</a> %Y A057330 See also A005603. Cf. A179866. %K A057330 nonn,nice,more %O A057330 1,1 %A A057330 _Patrick De Geest_, Aug 15 2000 %E A057330 More terms from Jean Gaumont (jeangaum87(AT)yahoo.com), Apr 16 2006 %E A057330 Offset corrected by _Max Alekseyev_, May 07 2009 %E A057330 a(16) found by Tony Forbes, added by _Jens Kruse Andersen_, Jun 14 2014