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Numbers whose base-4 representation Sum_{i=0..m} d(i)*4^i has d(m) <= d(m-1) >= d(m-2) <= ...
2

%I #9 Feb 12 2021 20:53:23

%S 1,2,3,5,6,7,10,11,15,20,21,24,25,26,28,29,30,31,40,41,42,44,45,46,47,

%T 60,61,62,63,80,81,82,83,85,86,87,96,97,98,99,101,102,103,106,107,112,

%U 113,114,115,117,118,119,122,123,127,160,161

%N Numbers whose base-4 representation Sum_{i=0..m} d(i)*4^i has d(m) <= d(m-1) >= d(m-2) <= ...

%K nonn,base

%O 1,2

%A _Clark Kimberling_