%I
%S 42,138,162,168,171,174,186,234,522,546,552,555,558,570,642,648,651,
%T 654,672,675,684,687,690,696,699,702,714,738,744,747,750,762,810,906,
%U 930,936,939,942,954,1002,2058,2082,2088,2091,2094
%N Numbers n with property that in base 4 representation the numbers of 1's and 2's are 0 and 3, respectively.
%t Select[Range[2200],DigitCount[#,4,1]==0&&DigitCount[#,4,2]==3&] (* _Harvey P. Dale_, Dec 05 2012 *)
%K nonn,base
%O 1,1
%A _Clark Kimberling_
