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Search: id:A114342
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| A114342 |
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Largest number whose base-n representation does not contain repeated digits, and which is not divisible by any of its (base-n) digits. |
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+0
1
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| 0, 0, 0, 35, 577, 5909, 16331, 2053379, 42374099, 987654203, 2334368201
(list; graph; listen)
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OFFSET
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1,4
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REFERENCES
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"Enigma 1343: Digital Dividend", New Scientist, Jun 04 2005, 28.
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EXAMPLE
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There are 49 numbers whose base-4 representation does not contain repeated digits. Of these, the largest which is not divisible by any of its digits is a(4)=203_4=35_10.
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CROSSREFS
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Cf. A113028.
Sequence in context: A133317 A105947 A107915 this_sequence A010951 A033281 A126925
Adjacent sequences: A114339 A114340 A114341 this_sequence A114343 A114344 A114345
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KEYWORD
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hard,nonn
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AUTHOR
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Francis Carr (fcarr(AT)alum.mit.edu), Feb 08 2006
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