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 A048522 #15 Feb 26 2018 19:21:35 %S A048522 1,3,1,11,57,51,17,187,953,947,913,827,313,2867,14609,13243,5049, %T A048522 46003,234385,209723,69945,768819,3914001,3912635,3904441,3879859, %U A048522 3740561,3388219,1282361,11746099,59848977,54211515,20517817,187937715 %N A048522 Terms of Binary Gleichniszahlen-Reihe (BGR) sequence A045998 converted into decimal (Look and Say Sequence, mod 2, read in binary and converted to decimal). %D A048522 N. Worrick, S. Lewis and B. Shrader, A possible formula for the length of BGR sequences, Graph Theory Notes of New York, XXXVI (1999), p. 25. %H A048522 Lars Blomberg, <a href="/A048522/b048522.txt">Table of n, a(n) for n = 0..3999</a> %e A048522 To generate the sequence, start with a 1. There is one 1, so the sequence becomes 11. Now there are 2 1s, but 2 is 0 mod 2, so it becomes 01. Then we get 1011, 111001, 110011, 010001, and so on. The terms in the series are these numbers converted to base 10. Note that leading zeros are not discarded during this process! - _William K. Grannis_, May 05 2016 %Y A048522 Cf. A005150, A045998, A045999. %K A048522 nonn,base %O A048522 0,2 %A A048522 _Patrick De Geest_, Jun 15 1999 %E A048522 Edited by _N. J. A. Sloane_, Aug 11 2016