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 A282235 #6 Feb 17 2017 14:52:31 %S A282235 1,1,2,3,11,14,31,111,142,313,1121,1434,3221,11321,21142,33123,114331, %T A282235 214114,341111,1221231,2222342,3444233,12333241,22444134,41443441, %U A282235 131214241,233324342,431211243,1331142311,2422414214,4414223131,13443243411,31124133142 %N A282235 a(n) = Fibonacci(n) represented in bijective base-4 numeration. %H A282235 Alois P. Heinz, <a href="/A282235/b282235.txt">Table of n, a(n) for n = 1..1000</a> %H A282235 Wikipedia, <a href="https://en.wikipedia.org/wiki/Bijective_numeration">Bijective numeration</a> %F A282235 a(n) = A084544(A000045(n)). %p A282235 a:= proc(n) local b, d, l, m; l:= NULL; %p A282235 b, m:= 4, combinat[fibonacci](n); %p A282235 while m>0 do d:= irem(m, b, 'm'); %p A282235 if d=0 then d:=b; m:=m-1 fi; %p A282235 l:= d, l %p A282235 od; parse(cat(l)) %p A282235 end: %p A282235 seq(a(n), n=0..35); %Y A282235 Column k=4 of A214679. %Y A282235 Cf. A000045, A084544. %K A282235 nonn,base,easy %O A282235 1,3 %A A282235 _Alois P. Heinz_, Feb 09 2017