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 A247863 #11 Oct 16 2014 13:56:25 %S A247863 11,101,300491,61820577884902511,348769459612079711, %T A247863 427950243745391951,668482766088635621,2099202306201150041 %N A247863 Initial primes in the prime quadruplets generated by A247862. %C A247863 Subsequence of A007530. - _Michel Marcus_, Sep 26 2014 %Y A247863 Cf. A007530 (lesser of prime quadruplets), A247862. %K A247863 nonn,more %O A247863 1,1 %A A247863 _Ray G. Opao_, Sep 25 2014 %E A247863 Added a(8). - _Wolfdieter Lang_, Oct 16 2014