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A270045 Smallest m >= 19 containing no nines when represented in any base from 10 through n. 11
20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 30, 32, 32, 34, 34, 36, 36, 38, 38, 40, 40, 44, 44, 44, 44, 46, 46, 50, 50, 50, 50, 52, 52, 56, 56, 56, 56, 58, 58, 62, 62, 62, 62, 68, 68, 68, 68, 68, 68, 70, 70, 76, 76, 76, 76, 76, 76, 80, 80, 80, 80, 82, 82, 88, 88, 88, 88, 88, 88, 840 (list; graph; refs; listen; history; text; internal format)
OFFSET
10,1
COMMENTS
It remains to be determined if the sequence is finite.
LINKS
MATHEMATICA
Table[SelectFirst[Range[19, 10^3], Total@ Map[Function[k, DigitCount[#, k, 9]], Range[10, n]] == 0 &], {n, 10, 79}] /. n_ /; MissingQ@ n -> Nothing (* Michael De Vlieger, Mar 10 2016, Version 10.2 *)
CROSSREFS
Sequence in context: A008553 A007930 A319678 * A133895 A138602 A346400
KEYWORD
nonn,base
AUTHOR
Nathan Fox, Mar 09 2016
STATUS
approved

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)