A043395 - OEIS

%I #15 Apr 23 2023 21:58:52

%S 343,686,1029,1372,1715,2058,2402,2403,2404,2405,2406,2407,2408,2415,

%T 2422,2429,2436,2443,2450,2499,2548,2597,2646,2695,2744,3087,3430,

%U 3773,4116,4459,4803,4804,4805,4806,4807,4808,4809

%N Numbers whose base-7 representation contains exactly three 0's.

%t Select[Range[5000],DigitCount[#,7,0]==3&] (* _Harvey P. Dale_, Jul 29 2017 *)

%Y Cf. A007093.

%K nonn,base

%O 1,1

%A _Clark Kimberling_