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Numbers whose base-5 representation contains exactly three 0's and no 1's.
0

%I #15 May 21 2023 00:22:23

%S 250,375,500,1252,1253,1254,1260,1265,1270,1300,1325,1350,1500,1625,

%T 1750,1877,1878,1879,1885,1890,1895,1925,1950,1975,2125,2250,2375,

%U 2502,2503,2504,2510,2515,2520,2550,2575,2600,2750,2875,3000,6262,6263,6264,6267,6268

%N Numbers whose base-5 representation contains exactly three 0's and no 1's.

%t Select[Range[3000],DigitCount[#,5,0]==3&&DigitCount[#,5,1]==0&] (* _Harvey P. Dale_, Feb 10 2016 *)

%Y Cf. A007091.

%K nonn,base

%O 1,1

%A _Clark Kimberling_