%I A043400
%S A043400 400,2458,2752,2794,2800,2802,2803,2804,2805,2806,2808,2815,2822,
%T A043400 2829,2836,2850,2899,2948,2997,3046,3144,3487,3830,4173,4516,
%U A043400 5202,7603,10004,12405,14806,16864,17158,17200,17206,17208,17209
%N A043400 Numbers n such that number of 1's in base 7 is 4.
%Y A043400 Sequence in context: A115470 A061042 A037991 this_sequence A038483 A006764 
               A108034
%Y A043400 Adjacent sequences: A043397 A043398 A043399 this_sequence A043401 A043402 
               A043403
%K A043400 nonn,base
%O A043400 1,1
%A A043400 Clark Kimberling (ck6(AT)evansville.edu)