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%I #9 Jun 20 2021 16:21:59
%S 0,1,3,4,5,6,8,9,11,12,13,14,23,24,25,27,28,29,30,32,33,35,36,37,38,
%T 40,41,43,44,45,46,48,49,51,52,53,54,58,64,65,67,68,69,70,72,73,75,76,
%U 77,78,87,88,89,91,92,93,94,96,97,99,100,101,102,104,105,107,108,109
%N Numbers whose base-8 representation has the same number of 2's and 7's.
%K nonn,base,easy
%O 1,3
%A _Olivier Gérard_
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