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A044966 Numbers whose base-3 representation contains no 0's and exactly one 1. 0
1, 5, 7, 17, 23, 25, 53, 71, 77, 79, 161, 215, 233, 239, 241, 485, 647, 701, 719, 725, 727, 1457, 1943, 2105, 2159, 2177, 2183, 2185, 4373, 5831, 6317, 6479, 6533, 6551, 6557, 6559, 13121, 17495, 18953, 19439, 19601, 19655, 19673 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[20000], DigitCount[#, 3, 0]==0&&DigitCount[#, 3, 1]==1&] (* Harvey P. Dale, Oct 21 2017 *)
CROSSREFS
Cf. A007089.
Sequence in context: A342799 A043879 A370855 * A359297 A283159 A283145
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified June 15 13:08 EDT 2024. Contains 373407 sequences. (Running on oeis4.)