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A045136 Numbers whose base-4 representation contains no 2's and exactly three 3's. 0

%I #12 May 21 2023 12:23:00

%S 63,127,207,223,243,247,252,253,319,383,463,479,499,503,508,509,783,

%T 799,819,823,828,829,847,863,883,887,892,893,963,967,972,973,979,983,

%U 988,989,1008,1009,1012,1013,1087,1151,1231,1247

%N Numbers whose base-4 representation contains no 2's and exactly three 3's.

%Y Cf. A007090.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified May 22 15:18 EDT 2024. Contains 372758 sequences. (Running on oeis4.)