%I #9 Aug 22 2021 00:13:01
%S 85,170,255,256,340,342,343,426,511,512,597,680,681,683,767,768,853,
%T 938,1020,1021,1022,1025,1026,1027,1109,1194,1279,1280,1360,1361,1362,
%U 1363,1368,1369,1370,1371,1372,1373,1374,1375,1450
%N Numbers whose maximal base-4 run length is 4.
%Y Cf. A043278.
%K nonn,base
%O 1,1
%A _Clark Kimberling_