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 A208834 #11 Apr 03 2023 10:36:13 %S A208834 373,131713,111311171113,311331173113,1321232117132113, %T A208834 1113121112131221171113122113,311311123112111311222117311311222113, %U A208834 132113311213211231132132211713211321322113 %N A208834 Look and say sequence starting with 373. %C A208834 The first four terms are prime, thus the first three terms are members of A056815. %C A208834 The fifth term is 17 * 18131 * 4286555419. %D A208834 David Wells, Prime Numbers: The Most Mysterious Figures in Math. Hoboken, New Jersey: John Wiley & Sons (2005): p. 41 %H A208834 Chris Caldwell, <a href="https://t5k.org/curios/page.php/373.html">Prime Curios! 373</a>, The Prime Pages %t A208834 (* First run one of the programs from A056815 to define the LookAndSay function *) NestList[LookAndSay, 373, 10] %Y A208834 Cf. A045918. %K A208834 nonn,easy,base %O A208834 1,1 %A A208834 _Alonso del Arte_, Mar 01 2012