%I #12 Apr 24 2021 17:43:14
%S 1755,5851,9947,12507,13019,13531,13851,13915,13979,14019,14027,14035,
%T 14040,14041,14042,14044,14045,14046,14047,14051,14059,14067,14075,
%U 14107,14171,14235,14299,14555,15067,15579,16091
%N Numbers having four 3's in base 8.
%t Select[Range[20000],DigitCount[#,8,3]==4&] (* _Harvey P. Dale_, Mar 22 2011 *)
%Y Cf. A007094.
%K nonn,base
%O 1,1
%A _Clark Kimberling_