%I A045120
%S A045120 23,29,53,71,77,83,91,92,94,103,109,113,116,118,121,151,157,181,197,
%T A045120 209,212,214,217,229,263,269,275,283,284,286,295,301,305,308,310,313,
%U A045120 323,331,332,334,355,363,364,366,368,370,376,378
%N A045120 Numbers n with property that in base 4 representation the numbers of 
               1's and 3's are 2 and 1, respectively.
%Y A045120 Sequence in context: A085713 A102904 A108249 this_sequence A097436 A063980 
               A046124
%Y A045120 Adjacent sequences: A045117 A045118 A045119 this_sequence A045121 A045122 
               A045123
%K A045120 nonn,base
%O A045120 1,1
%A A045120 Clark Kimberling (ck6(AT)evansville.edu)