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Numbers whose base-11 representation has the same nonzero number of 0's and 9's.
1

%I #14 Jun 30 2021 04:05:37

%S 99,130,220,251,341,372,462,493,583,614,704,735,825,856,946,977,1067,

%T 1090,1091,1092,1093,1094,1095,1096,1097,1099,1100,1111,1122,1133,

%U 1144,1155,1166,1177,1199,1219,1309,1351,1362,1373,1384,1395,1406

%N Numbers whose base-11 representation has the same nonzero number of 0's and 9's.

%H Harvey P. Dale, <a href="/A039446/b039446.txt">Table of n, a(n) for n = 1..2000</a>

%t Select[Range[1500],DigitCount[#,11,0]==DigitCount[#,11,9]>0&] (* _Harvey P. Dale_, Aug 11 2015 *)

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_