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%I #10 Apr 14 2020 19:56:45
%S 9,13,31,37,39,49,57,73,75,79,88,90,93,94,97,103,115,117,130,134,143,
%T 149,151,171,194,223,232,301,307,309,310,314,322,337,339,341,370,373,
%U 390,393,409,413,419,431,445,454,468,486,488,490,491,507
%N Numbers having period-3 6-digitized sequences.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Digitaddition.html">Digitaddition</a>
%K nonn,base
%O 1,1
%A _Eric W. Weisstein_
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