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 A343837 #6 Feb 16 2025 08:34:02 %S A343837 1,11,1112,11121321,11121321132111312111, %T A343837 1112132113211131211113211131211231211331112113 %N A343837 Describe all the previous terms (previous terms are described one by one in succession; method - digit-indication followed by frequency, initial term is 1). %C A343837 The next term is too large to include. %H A343837 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/LookandSaySequence.html">Look and Say Sequence</a> %e A343837 a(4) is obtained by saying "1 once; 1 twice; 1 thrice, 2 once", which gives 11121321. %Y A343837 Cf. A005150, A007651, A045981, A045982, A060857, A343838. %K A343837 nonn,base,easy %O A343837 1,2 %A A343837 _Ilya Gutkovskiy_, May 01 2021