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%I #14 Aug 10 2021 18:47:12
%S 231,232,233,236,238,239,242,243,245,248,249,250,291,292,293,306,310,
%T 311,312,315,317,318,321,322,326,328,329,336,340,341,348,350,353,354,
%U 356,358,362,363,365,372,375,377,378,380,383
%N Numbers with exactly four distinct base-6 digits.
%H Harvey P. Dale, <a href="/A031965/b031965.txt">Table of n, a(n) for n = 1..3000</a>
%t Select[Range[400],Count[DigitCount[#,6],0]==2&] (* _Harvey P. Dale_, Aug 15 2016 *)
%Y Cf. A007092.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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