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Numbers whose maximal base-4 run length is 4.
1

%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_