%I #12 Nov 03 2024 14:31:25
%S 131,142,275,286,419,430,563,574,707,718,851,862,995,1006,1139,1150,
%T 1283,1294,1427,1438,1451,1463,1475,1487,1499,1511,1523,1535,1547,
%U 1559,1572,1573,1574,1575,1576,1577,1578,1579,1580,1581,1594,1606
%N Numbers whose base-12 representation has the same nonzero number of 10's and 11's.
%t Select[Range[2000],DigitCount[#,12,10]==DigitCount[#,12,11]>0&] (* _Harvey P. Dale_, Nov 03 2024 *)
%K nonn,base,easy
%O 1,1
%A _Olivier GĂ©rard_