%I #9 Jun 26 2021 06:47:05
%S 0,2,3,5,6,7,8,9,10,15,22,24,25,27,28,29,30,31,32,33,35,36,38,39,40,
%T 41,42,43,45,55,57,58,60,61,62,63,64,65,66,68,69,71,72,73,74,75,76,77,
%U 79,80,82,83,84,85,86,87,88,90,91,93,94,95,96,97,98,99,101,102,104
%N Numbers whose base-11 representation has the same number of 1's and 4's.
%K nonn,base,easy
%O 1,2
%A _Olivier GĂ©rard_