A031470 - OEIS

%I #9 Jul 04 2021 18:28:05

%S 1,2,3,6,7,8,11,12,13,16,17,18,20,29,31,32,33,36,37,38,41,42,43,45,54,

%T 56,57,58,61,62,63,66,67,68,70,79,81,82,83,86,87,88,91,92,93,95,101,

%U 102,103,105,110,115,134,139,144,146,147,148

%N Numbers whose base-5 representation has the same number of 0's as 4's.

%t Select[Range[200],DigitCount[#,5,0]==DigitCount[#,5,4]&] (* _Harvey P. Dale_, May 30 2019 *)

%Y Cf. A007091.

%K nonn,base

%O 1,2

%A _Clark Kimberling_