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 A282234 #7 Feb 17 2017 14:51:56 %S A282234 1,1,2,3,12,22,111,133,321,1231,2322,11323,22122,111222,211121,323113, %T A282234 1311311,3112131,12131212,22321113,112222332,212321222,332321331, %U A282234 1323113323,3133213131,12311111231,23221332132,113233221133,221232331112,1112313322322 %N A282234 a(n) = Fibonacci(n) represented in bijective base-3 numeration. %H A282234 Alois P. Heinz, <a href="/A282234/b282234.txt">Table of n, a(n) for n = 1..1000</a> %H A282234 Wikipedia, <a href="https://en.wikipedia.org/wiki/Bijective_numeration">Bijective numeration</a> %F A282234 a(n) = A007932(A000045(n)). %p A282234 a:= proc(n) local b, d, l, m; l:= NULL; %p A282234 b, m:= 3, combinat[fibonacci](n); %p A282234 while m>0 do d:= irem(m, b, 'm'); %p A282234 if d=0 then d:=b; m:=m-1 fi; %p A282234 l:= d, l %p A282234 od; parse(cat(l)) %p A282234 end: %p A282234 seq(a(n), n=0..35); %Y A282234 Column k=3 of A214679. %Y A282234 Cf. A000045, A007932. %K A282234 nonn,base,easy %O A282234 1,3 %A A282234 _Alois P. Heinz_, Feb 09 2017