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 A229085 #13 Apr 25 2016 12:00:16 %S A229085 6,1,12,2,3,5,56,4,26,23,9,11,13,7,264,50,78,18,22,53,120,51,10,55,25, %T A229085 27,14,15,96,16,24,40,28,36,44,52,30,8,20,106,21,108,182,58,31,33,17, %U A229085 101,19,105,43,45,47,49,103,174,252,123,61,4032,32,48,80,452 %N A229085 Sequence A229084 written in base 10. %C A229085 A229084 = lexicographically earliest sequence of distinct positive integers written in base 2 such that the concatenation of the terms equals the concatenation of the positive integers, and no term appears in its natural position. Leading zeros are forbidden. %C A229085 The positive integers written in base 10 (A000027): %C A229085 +-+--+--+---+---+---+---+----+----+----+----+----+----+----+ %C A229085 |1| 2| 3| 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |... %C A229085 +-+--+--+---+---+---+---+----+----+----+----+----+----+----+ %C A229085 The positive integers written in base 2 (A007088): %C A229085 +-+--+--+---+---+---+---+----+----+----+----+----+----+----+ %C A229085 |1|10|11|100|101|110|111|1000|1001|1010|1011|1100|1101|1110|... %C A229085 +-+--+--+---+---+---+---+----+----+----+----+----+----+----+ %C A229085 Sequence A229084: %C A229085 +----+-+----+--+--+---+------+---+-----+-----+----+----+----+ %C A229085 | 110|1|1100|10|11|101|111000|100|11010|10111|1001|1011|1101|... %C A229085 +----+-+----+--+--+---+------+---+-----+-----+----+----+----+ %C A229085 This sequence a(n): %C A229085 +----+-+----+--+--+---+------+---+-----+-----+----+----+----+ %C A229085 | 6 |1| 12 | 2| 3| 5 | 56 | 4 | 26 | 23 | 9 | 11| 13|... %C A229085 +----+-+----+--+--+---+------+---+-----+-----+----+----+----+ %H A229085 Paul Tek, <a href="/A229085/b229085.txt">Table of n, a(n) for n = 1..10000</a> %H A229085 Paul Tek, <a href="/A229085/a229085.txt">PERL program for this sequence</a> %o A229085 (Perl) See Link section. %Y A229085 Cf. A228595 (like sequence in base 10), A007088 (numbers written in base 2), A229084. %K A229085 nonn,base %O A229085 1,1 %A A229085 _Jaroslav Krizek_, Sep 13 2013 %E A229085 Corrected by _Paul Tek_, Sep 19 2013