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A045027 Numbers whose base-4 representation contains exactly two 0's and four 1's. 1
1045, 1093, 1105, 1108, 1285, 1297, 1300, 1345, 1348, 1360, 4182, 4183, 4185, 4189, 4197, 4213, 4245, 4309, 4374, 4375, 4377, 4381, 4389, 4405, 4422, 4423, 4425, 4429, 4434, 4435, 4440, 4444, 4449, 4452, 4465, 4468 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[10000], DigitCount[#, 4, 0] == 2 && DigitCount[#, 4, 1] == 4 &] (* Vincenzo Librandi, Sep 22 2016 *)
CROSSREFS
Cf. A007090.
Sequence in context: A213811 A260205 A224604 * A345514 A345767 A324320
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified July 15 11:27 EDT 2024. Contains 374332 sequences. (Running on oeis4.)