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A004720
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Delete all 1's from the sequence of nonnegative integers.
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2
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0, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 2, 3, 4, 5, 6, 7, 8, 9, 20, 2, 22, 23, 24, 25, 26, 27, 28, 29, 30, 3, 32, 33, 34, 35, 36, 37, 38, 39, 40, 4, 42, 43, 44, 45, 46, 47, 48, 49, 50, 5, 52, 53, 54, 55, 56, 57, 58, 59, 60, 6, 62, 63, 64, 65, 66, 67, 68, 69, 70, 7, 72, 73, 74, 75
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Essentially the same as A004176. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 28 2008]
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..3000
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MATHEMATICA
| Table[FromDigits[DeleteCases[IntegerDigits[n], 1]], {n, 3000}]; [Zak Seidov, Dec 08 2010]
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PROG
| (Haskell)
a004720 n = read $ '0' : (filter (/= '1') $ show n) :: Integer
-- Reinhard Zumkeller, Aug 01 2011
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CROSSREFS
| Sequence in context: A103303 A093691 A004176 * A085124 A054054 A115353
Adjacent sequences: A004717 A004718 A004719 * A004721 A004722 A004723
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KEYWORD
| base,nonn,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| Corrected by T. D. Noe, Sep 19 2008
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