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%I #17 Apr 24 2021 01:59:52
%S 256,512,768,1025,1026,1027,1028,1032,1036,1040,1056,1072,1088,1152,
%T 1216,1280,1536,1792,2049,2050,2051,2052,2056,2060,2064,2080,2096,
%U 2112,2176,2240,2304,2560,2816,3073,3074,3075,3076
%N Numbers having four 0's in base 4.
%t Select[Range[4000],DigitCount[#,4,0]==4&] (* _Harvey P. Dale_, Nov 04 2015 *)
%Y Cf. A007090.
%K nonn,base
%O 1,1
%A _Clark Kimberling_