%I #9 Apr 25 2021 12:14:30
%S 250572,250574,250575,250576,250577,250578,250579,250580,250581,
%T 250582,250583,250584,250585,250587,250588,250589,250590,250591,
%U 250592,250593,250594,250595,250596,250597,250598,250600,250601
%N Numbers whose base-12 representation has exactly 6 runs.
%K nonn,base
%O 1,1
%A _Clark Kimberling_