%I A046300
%S A046300 4,5,6,7,14,15,26,102,108,109,224,103,104,105,506,507,452,1169,1170,
%T A046300 1171
%N A046300 2^a(n) is first occurrence that contains 2^k as largest proper substring 
               (k = 0,1,2,3,...).
%C A046300 First terms of A046287-A046299.
%e A046300 2^4={1}6 and 2^0=1; 2^5=3{2} and 2^1=2; 2^6=6{4} and 2^2=4; etc.
%Y A046300 Cf. A033921.
%Y A046300 Sequence in context: A131260 A047566 A037355 this_sequence A053738 A154787 
               A107759
%Y A046300 Adjacent sequences: A046297 A046298 A046299 this_sequence A046301 A046302 
               A046303
%K A046300 nonn,base,more
%O A046300 1,1
%A A046300 Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1998.