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Numbers whose base-5 representation contains exactly three 0's and one 2.
0

%I #13 May 21 2023 00:21:42

%S 250,627,635,675,875,1251,1253,1254,1255,1265,1270,1275,1325,1350,

%T 1375,1625,1750,1877,1885,1925,2125,2502,2510,2550,2750,3132,3136,

%U 3138,3139,3142,3147,3152,3160,3176,3178,3179,3180

%N Numbers whose base-5 representation contains exactly three 0's and one 2.

%t Select[Range[3200],DigitCount[#,5,0]==3&&DigitCount[#,5,2]==1&] (* _Harvey P. Dale_, Dec 11 2020 *)

%Y Cf. A007091.

%K nonn,base

%O 1,1

%A _Clark Kimberling_