%I #9 Jun 26 2021 06:47:31
%S 0,1,3,4,5,6,8,9,10,11,12,14,15,16,17,19,20,21,29,33,34,36,37,38,39,
%T 41,42,43,44,45,47,48,49,50,52,53,54,55,56,58,59,60,61,63,64,65,66,67,
%U 69,70,71,72,74,75,76,79,88,89,91,92,93,94,96,97,98,99,100,102,103
%N Numbers whose base-11 representation has the same number of 2's and 7's.
%K nonn,base,easy
%O 1,3
%A _Olivier GĂ©rard_