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%I #12 Jun 28 2021 04:34:27
%S 7,11,27,35,38,39,42,47,51,55,58,59,66,71,82,86,107,111,127,135,138,
%T 139,142,147,162,175,178,179,182,186,190,193,194,195,198,199,202,210,
%U 213,214,217,222,227,235,238,239,242,247,251,255,258,259,266,271,275
%N Numbers whose base-5 representation has the same nonzero number of 1's and 2's.
%Y Cf. A007091.
%K nonn,base,easy
%O 1,1
%A _Olivier Gérard_
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