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Search: id:A131646
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| A131646 |
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Numbers > 9 that can be written from base 2 to base 18 using only the digits 0 to 9 (conjectured to be complete). |
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+0
1
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| 18, 19, 20, 1027, 1028, 1029, 14745, 9020076688681, 9439828025162228377, 9439829801208141318
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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It appears that 19 and 20 are the only numbers > 9 that can be written up to base 19 only using digits 0 to 9 and 20 is the only number > 9 that can be written up to base 20 only using digits 0 to 9.
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LINKS
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Daniel Mondot, Puzzle.
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CROSSREFS
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Sequence in context: A004507 A018823 A025144 this_sequence A031956 A095393 A056022
Adjacent sequences: A131643 A131644 A131645 this_sequence A131647 A131648 A131649
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KEYWORD
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fini,full,nonn
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AUTHOR
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Daniel Mondot, Sep 08 2007
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