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Search: id:A037124
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| A037124 |
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Numbers that contain only one nonzero digit. |
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+0
9
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| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000, 100000
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Starting with 1: next greater number not containing the highest digit (see also A098395). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 31 2004
a(n) = A140740(n+9,9). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 26 2008
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FORMULA
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a(n) = [(n mod 9)+1] * 10^floor(n/9). E.g. a(39) = [(39 mod 9)+1] * 10^floor(39/9) = [3+1] * 10^4 = 40000 - Carl R. White (cyrek(AT)cyreksoft.yorks.com), Jan 08 2004
a(n) = A051885(n) + 1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 03 2008
A138707(a(n)) = A000005(a(n)); A061116 is a subsequence. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 26 2008
a(n+1) = a(n) + a(n - n mod 9). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 26 2008
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CROSSREFS
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Cf. A000079, A038754, A133464, A140730.
Sequence in context: A070958 A051596 A071061 this_sequence A166508 A068861 A068860
Adjacent sequences: A037121 A037122 A037123 this_sequence A037125 A037126 A037127
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KEYWORD
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nonn,base
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AUTHOR
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Vasiliy Danilov (danilovv(AT)usa.net) Jun 15 1998
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