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 A110027 #8 Apr 03 2023 10:36:11 %S A110027 2,1531,6841,15391,44371,53639,53849,57991,61409,66749,83431,105871, %T A110027 143609,145021,150151,167729,186149,199621,206369,209431,212851, %U A110027 231241,242551,268049,291271,296099,319681,340919,346141,377491,381631,422069 %N A110027 Smallest primes starting a complete four iterations Cunningham chain of the first or second kind. %C A110027 The word "complete" indicates each chain is exactly 5 primes long (i.e., the chain cannot be a subchain of another one). %C A110027 Terms computed by Gilles Sadowski. %H A110027 Chris Caldwell's Prime Glossary, <a href="https://t5k.org/glossary/page.php?sort=CunninghamChain">Cunningham chains</a>. %F A110027 Union of A059764 and A110022 . [_R. J. Mathar_, May 08 2009] %Y A110027 Cf. A023272, A023302, A023330, A005384, A005385, A059452, A059455, A007700, %Y A110027 Cf. A059759, A059760, A059761, A059762, A059763, A059764, A059765, A038397, A104349, A091314, A069362, A016093, A014937, A057326. %K A110027 easy,nonn %O A110027 1,1 %A A110027 _Alexandre Wajnberg_, Sep 03 2005 %E A110027 Edited and extended by _R. J. Mathar_, May 08 2009