A039115 - OEIS

%I #9 Jun 26 2021 12:10:47

%S 1,2,3,5,6,7,8,9,11,12,13,15,16,17,18,19,21,22,23,25,26,27,28,29,31,

%T 32,33,35,36,37,38,39,40,51,52,53,55,56,57,58,59,61,62,63,65,66,67,68,

%U 69,71,72,73,75,76,77,78,79,81,82,83,85,86,87,88,89,91,92,93,95,96

%N Numbers whose base-10 representation has the same number of 0's and 4's.

%K nonn,base,easy

%O 1,2

%A _Olivier Gérard_