A039204 - OEIS

%I #11 Jun 26 2021 06:46:32

%S 0,1,2,3,4,5,6,9,10,11,12,13,14,15,16,17,20,21,22,23,24,25,26,27,28,

%T 31,32,33,34,35,36,37,38,39,42,43,44,45,46,47,48,49,50,53,54,55,56,57,

%U 58,59,60,61,64,65,66,67,68,69,70,71,72,75,76,85,95,99,100,101,102

%N Numbers whose base-11 representation has the same number of 7's and 8's.

%t Select[Range[0,150],DigitCount[#,11,7]==DigitCount[#,11,8]&] (* _Harvey P. Dale_, Apr 11 2013 *)

%K nonn,base,easy

%O 1,3

%A _Olivier Gérard_