%I #12 Jun 29 2021 02:18:20
%S 20,44,69,93,104,111,125,132,139,140,141,143,144,145,167,191,216,240,
%T 265,289,296,303,308,309,311,312,313,317,324,331,363,387,412,436,447,
%U 454,468,475,482,483,484,486,487,488,510,534,559,583,608,632,639,646
%N Numbers whose base-7 representation has the same nonzero number of 2's and 6's.
%Y Cf. A007093.
%K nonn,base,easy
%O 1,1
%A _Olivier GĂ©rard_