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 A225332 #20 Jan 19 2019 04:15:43 %S A225332 2,1,1,2,2,2,1,3,3,2,1,1,1,2,2,3,1,1,2,3,3,1,2,2,2,1,1,3,2,2,1,1,1,2, %T A225332 2,2,3,1,1,1,3,3,2,2,2,1,1,1,3,2,2,2,3,3,1,3,3,2,1,1,3,3,3,1,2,2,3,3, %U A225332 3,2,3,3 %N A225332 A continuous "look-and-repeat" sequence (seed 2). %C A225332 The 'look-and-repeat' sequence A225330, with seed 2. The variant A225331 with the same seed 2 gives this same sequence. %C A225332 It describes at each step the preceding digits by repeating the frequency number. %C A225332 The sequence is determined by triples of digits. The first two terms of a triple are the repeated count and the last term is the digit. %C A225332 a(n) is always equal to 1, 2, 3, or 5. No series of four identical digits happens in the sequence, nor any of five 5's. %C A225332 Applying the look-and-repeat principle to the sequence itself, it is simply shift one rank to the left. %e A225332 a(1) = 2, you then see "one 2" and repeating "one", a(2) = a(3) = 1 (one) and a(4) = 2; you have then two 1's, so 2, 2, 1; then three 2, so 3, 3, 1, etc. %Y A225332 Cf. A225330, A225331 (two variants with seed 1), A225329 (look-and-repeat by block), A005150 (original look-and-say), A225224, A221646, A225212 (continuous look-and-say versions). %K A225332 nonn,easy %O A225332 1,1 %A A225332 _Jean-Christophe Hervé_, May 12 2013