%I A091447
%S A091447 0,1,0,0,0,1,1,0,1,1,0,0,0,0,0,1,0,1,0,1,0,0,0,1,1,1,0,1,1,1,0,1,1,1,0,
%T A091447 0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,0,0,1,1,0,1,0,1,1,0,0,1,0,1,1,0,
%U A091447 1,0,1,0,1,1,0,0,0,1,1,1,1,0,1,1,1,1,0,1,1,1,1,0,1,1,1,1
%N A091447 Concatenate binary vectors ordered first by length, then by the number 
               of 1's and finally by an 'unusual' lexicographical ordering (read 
               words from right to left, 1 comes before 0).
%Y A091447 Cf. A076478, A091444, A091445, A091446.
%Y A091447 Sequence in context: A079101 A076478 A091444 this_sequence A106701 A033684 
               A080885
%Y A091447 Adjacent sequences: A091444 A091445 A091446 this_sequence A091448 A091449 
               A091450
%K A091447 easy,nonn
%O A091447 0,1
%A A091447 Paul Boddington (psb(AT)maths.warwick.ac.uk), Jan 10 2004