%I #14 May 21 2023 00:22:17

%S 126,130,150,632,633,634,636,641,646,652,653,654,660,665,670,676,680,

%T 701,705,726,730,752,753,754,760,765,770,800,825,850,876,880,900,1001,

%U 1005,1025,1126,1130,1150,1256,1276,1280,1376,1380,1400,1881,1901,1905,2001

%N Numbers whose base-5 representation contains exactly two 0's and two 1's.

%t Select[Range[1500],DigitCount[#,5,0]==DigitCount[#,5,1]==2&] (* _Harvey P. Dale_, Apr 21 2017 *)

%Y Cf. A007091.

%K nonn,base

%O 1,1

%A _Clark Kimberling_