A039489 - OEIS

%I #12 Jun 30 2021 04:46:48

%S 87,117,208,238,329,359,450,480,571,601,692,722,813,843,857,868,879,

%T 890,901,912,923,945,956,957,958,959,960,961,962,963,965,966,1055,

%U 1085,1176,1206,1217,1228,1239,1250,1261,1272,1283,1287,1288,1289

%N Numbers whose base-11 representation has the same nonzero number of 7's and 10's.

%t Select[Range[1300],DigitCount[#,11,7]==DigitCount[#,11,10]>0&] (* _Harvey P. Dale_, Oct 17 2013 *)

%K nonn,base,easy

%O 1,1

%A _Olivier Gérard_