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 A109683 #11 Jan 22 2020 14:20:33 %S A109683 0,1,12,10,11,22,20,121,102,100,101,112,110,111,122,120,221,202,200, %T A109683 201,212,210,211,222,1220,1021,1002,1000,1001,1012,1010,1011,1022, %U A109683 1020,1121,1102,1100,1101,1112,1110,1111,1122,1120,1221,1202,1200 %N A109683 Ternary equivalents of A109681. %C A109683 a(n) = A007089(A109681(n)). - _Reinhard Zumkeller_, Nov 19 2013 %H A109683 Reinhard Zumkeller, <a href="/A109683/b109683.txt">Table of n, a(n) for n = 0..10000</a> %o A109683 (Haskell) %o A109683 a109683 = a007089 . a109681 -- _Reinhard Zumkeller_, Nov 19 2013 %Y A109683 Cf. A109681, A109682. %K A109683 nonn,easy,base %O A109683 0,3 %A A109683 _Philippe Deléham_, Aug 08 2005