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Search: id:A131646
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| A131646 |
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Numbers 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
6
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| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 18, 19, 20, 1027, 1028, 1029, 14745, 9020076688681, 9439828025162228377, 9439829801208141318
(list; graph; listen)
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OFFSET
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1,3
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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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Cf. A146025, A146026, A146027, A146028, A146029.
Sequence in context: A124366 A048408 A118765 this_sequence A032864 A032888 A023791
Adjacent sequences: A131643 A131644 A131645 this_sequence A131647 A131648 A131649
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KEYWORD
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fini,full,nonn,base,new
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AUTHOR
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Daniel Mondot, Sep 08 2007, Nov 02 2008
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EXTENSIONS
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Edited by Charles R Greathouse IV (charles.greathouse(AT)case.edu), Nov 01 2009
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