Search: id:A018831
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%I A018831
%S A018831 0,1,7,30,49,285,343,911,1900,2208,2401,13962,16807,59763,64098,69128,
%T A018831 85880,97734,117649,195032,418341,754422,823543,2162126,2629229,2790841,
%U A018831 3488518,3842400,4960401,5764801,7923812,8559490,15134882,19765943
%N A018831 Numbers n such that n is a substring of its square in base 7 (written 
               in base 10).
%Y A018831 Sequence in context: A157422 A061644 A053621 this_sequence A063128 A063148 
               A116283
%Y A018831 Adjacent sequences: A018828 A018829 A018830 this_sequence A018832 A018833 
               A018834
%K A018831 nonn,base
%O A018831 1,3
%A A018831 David W. Wilson (davidwwilson(AT)comcast.net)

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