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A045030 Numbers whose base-4 representation contains exactly three 0's and two 1's. 1
257, 260, 272, 320, 1030, 1031, 1033, 1037, 1042, 1043, 1048, 1052, 1057, 1060, 1073, 1076, 1090, 1091, 1096, 1100, 1120, 1136, 1153, 1156, 1168, 1217, 1220, 1232, 1282, 1283, 1288, 1292, 1312, 1328, 1408, 1472, 1537 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[10000], DigitCount[#, 4, 0] == 3 && DigitCount[#, 4, 1] == 2 &] (* Vincenzo Librandi, Sep 22 2016 *)
CROSSREFS
Cf. A007090.
Sequence in context: A260679 A043676 A296901 * A253149 A139653 A273551
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified July 21 20:59 EDT 2024. Contains 374475 sequences. (Running on oeis4.)