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 A097598 #4 Mar 30 2012 18:55:34 %S A097598 10,11,12,13,14,15,16,17,18,19,1011,21,1211,1311,1411,1511,1611,1711, %T A097598 1811,1911,1012,1112,22,1312,1412,1512,1612,1712,1812,1912,1013,1113, %U A097598 1213,23,1413,1513,1613,1713,1813,1913,1014,1114,1214,1314,24,1514,1614 %N A097598 Describe n from right to left. %Y A097598 Cf. A047842. %K A097598 easy,nonn,base %O A097598 0,1 %A A097598 _Odimar Fabeny_, Aug 29 2004 %E A097598 More terms from _Robert G. Wilson v_, Aug 30 2004