%I #9 Apr 25 2021 12:14:48

%S 1740,1742,1743,1744,1745,1746,1747,1748,1749,1750,1751,1752,1753,

%T 1755,1756,1757,1758,1759,1760,1761,1762,1763,1764,1765,1766,1768,

%U 1769,1770,1771,1772,1773,1774,1775,1776,1777,1778

%N Numbers whose base-12 representation has exactly 4 runs.

%K nonn,base

%O 1,1

%A _Clark Kimberling_