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%I #10 Jul 01 2021 00:00:59
%S 55,88,199,232,343,376,487,520,583,595,607,619,643,655,660,661,662,
%T 663,665,666,668,669,670,671,679,691,703,715,775,808,919,952,1012,
%U 1024,1036,1048,1056,1057,1058,1059,1061,1062,1064,1065,1066,1067
%N Numbers whose base-12 representation has the same nonzero number of 4's and 7's.
%K nonn,base,easy
%O 1,1
%A _Olivier Gérard_
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