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 A038131 #18 Jul 03 2021 04:22:08 %S A038131 120777781,111210471811,311211101417111821,13211231101114111731181211, %T A038131 111312211213211031143117132118111221, %U A038131 31131122211211131221101321141321171113122118312211 %N A038131 Second earliest sequence of 6 primes according to the rules stipulated in A005150. %H A038131 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_036.htm">Puzzle 36. Sequences of "descriptive primes"</a>, The Prime Puzzles and Problems Connection. %H A038131 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_999.htm">Puzzle 999. In Memoriam to John Horton Conway</a>, The Prime Puzzles and Problems Connection. %Y A038131 Cf. A005150, A037033, A038132. %K A038131 fini,full,nonn,base %O A038131 1,1 %A A038131 _Carlos Rivera_ %E A038131 Name edited by _Michel Marcus_, May 09 2020