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 A022502 #9 Jan 05 2018 22:02:01 %S A022502 6,61,6111,6113,611231,6112213111,611222113113,61122312311231, %T A022502 6112223111213112213111,61122331132111311222113113, %U A022502 611222321231211331122312311231 %N A022502 Describe the previous term! (method B - initial term is 6). %C A022502 Method B = 'digit'-indication followed by 'frequency'. %H A022502 Seiichi Manyama, <a href="/A022502/b022502.txt">Table of n, a(n) for n = 1..23</a> %e A022502 E.g. the term after 6113 is obtained by saying "6 once, 1 twice, 3 once", which gives 611231. %Y A022502 Cf. A007651, A022470, A022499, A022500-A022505. %K A022502 nonn,base,easy,nice %O A022502 1,1 %A A022502 _N. J. A. Sloane_