%I A039138
%S A039138 0,1,2,4,5,6,8,9,10,11,12,14,15,16,18,19,20,21,22,24,25,26,28,29,37,40,
%T A039138 41,42,44,45,46,48,49,50,51,52,54,55,56,58,59,60,61,62,64,65,66,68,69,
%U A039138 73,80,81,82,84,85,86,88,89,90,91,92,94,95,96,98,99,100,101,102
%N A039138 Numbers n such that representation in base 10 has same number of 3's 
               and 7's.
%Y A039138 Sequence in context: A039185 A080240 A135668 this_sequence A030124 A064318 
               A039100
%Y A039138 Adjacent sequences: A039135 A039136 A039137 this_sequence A039139 A039140 
               A039141
%K A039138 nonn,base,easy
%O A039138 1,3
%A A039138 Olivier Gerard (olivier.gerard(AT)gmail.com)