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Numbers whose base-4 representation has 3 fewer 0's than 3's.
1

%I #7 Jul 04 2021 14:19:03

%S 63,127,191,223,239,247,251,253,254,383,447,479,495,503,507,509,510,

%T 639,703,735,751,759,763,765,766,831,863,879,887,891,893,894,927,943,

%U 951,955,957,958,975,983,987,989,990,999,1003,1005

%N Numbers whose base-4 representation has 3 fewer 0's than 3's.

%Y Different from A045064.

%Y Cf. A007090.

%K nonn,base

%O 1,1

%A _Clark Kimberling_