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 A085652 #21 Feb 08 2017 20:20:33 %S A085652 1,1,2,11,21,112,221,1221,11122,22111,122121,1121112,2212121,12222121, %T A085652 112211122,222122211,2111222221,12111122112,111112121221,212112212221, %U A085652 1212122111122,11121211221111,21222222221121,122121211211112,1121121211121121,2212212111221121 %N A085652 Fibonacci sequence in base 2 of the alternate number system. %D A085652 R. R. Forslund, A Logical Alternative to the existing positional number system. Souhtwest Journal of Pure and Applied Mathematics. Dec. 1995. Vol. 1 %H A085652 Alois P. Heinz, <a href="/A085652/b085652.txt">Table of n, a(n) for n = 1..1000</a> %H A085652 R. R. Forslund, <a href="http://www.emis.de/journals/SWJPAM/Vol1_1995/rrf01.ps">A Logical Alternative to the Existing Positional Number System</a> %H A085652 R. R. Forslund, <a href="http://my.tbaytel.net/forslund/rrf01.html">A Logical Alternative to the Existing Positional Number System</a> %F A085652 a(n) = A007931(A000045(n)). %p A085652 a:= proc(n) local d, l, m; %p A085652 m:= combinat[fibonacci](n); l:= NULL; %p A085652 while m>0 do d:= irem(m, 2, 'm'); %p A085652 if d=0 then d:=2; m:= m-1 fi; %p A085652 l:= d, l %p A085652 od; parse(cat(l)) %p A085652 end: %p A085652 seq(a(n), n=1..30); # _Alois P. Heinz_, Jul 25 2012 %Y A085652 Cf. A000045, A007931, A214679. %K A085652 nonn,base,easy %O A085652 1,3 %A A085652 Bob Forslund (forslund(AT)tbaytel.net), Jul 11 2003 %E A085652 More terms from _David Wasserman_, Feb 08 2005