Search: id:A127887
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%I A127887
%S A127887 9,18,27,28,31,33,36,37,39,41,43,47,49,50,54,55,56,57,59,62,63
%N A127887 Indices of nonzero terms of A127886.
%C A127887 These are the numbers for which allowing the choice of x/2 or 3x+1 in 
               the "3x+1" iteration makes a difference in the minimal number of 
               steps to reach 1.
%C A127887 Thus these are the n for which A006577(n) > A127885(n)
%Y A127887 Sequence in context: A102042 A121282 A110529 this_sequence A037337 A119310 
               A037993
%Y A127887 Adjacent sequences: A127884 A127885 A127886 this_sequence A127888 A127889 
               A127890
%K A127887 nonn
%O A127887 1,1
%A A127887 David Applegate (david(AT)research.att.com) and N. J. A. Sloane (njas(AT)research.att.com), 
               Feb 04 2007

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