Search: id:A030151
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%I A030151
%S A030151 0,1,2,3,4,5,6,7,9,11,13,16,19,23,26,27,31,36,69,74,81,84,96,111,
%T A030151 113,119,127,137,181,187,204,237,264,269,273,277,281,296,311,384,
%U A030151 404,426,461,463,539,574,584,606,661,673,677,689,726,736,764,819
%N A030151 Numbers n such that in n^2 the parity of digits alternates.
%Y A030151 Sequence in context: A008725 A011867 A026445 this_sequence A131617 A005577 
               A072966
%Y A030151 Adjacent sequences: A030148 A030149 A030150 this_sequence A030152 A030153 
               A030154
%K A030151 nonn,base
%O A030151 1,3
%A A030151 Patrick De Geest (pdg(AT)worldofnumbers.com)

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