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A052484
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Let P = all numbers that can be obtained by permuting the digits of n and possibly adding or omitting zeros; a(n) = |n-q| where q in P is the closest number to n different different from n (a(n)=0 if no such q exists).
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2
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0, 9, 18, 27, 36, 45, 54, 63, 72, 81, 9, 90, 9, 18, 27, 36, 45, 54, 63, 72, 18, 9, 180, 9, 18, 27, 36, 45, 54, 63, 27, 18, 9, 270, 9, 18, 27, 36, 45, 54, 36, 27, 18, 9, 360, 9, 18, 27, 36, 45, 45, 36, 27, 18, 9, 450, 9, 18, 27, 36, 54, 45, 36, 27, 18, 9, 540, 9, 18, 27, 63, 36, 45, 36, 27, 18
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Quasi-periodic.
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EXAMPLE
| a(1)=9 since P={1,10,100,...} and 10-1 = 9.
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CROSSREFS
| Cf. A052500, A052999.
Sequence in context: A114386 A178895 A044894 * A072830 A008591 A070279
Adjacent sequences: A052481 A052482 A052483 * A052485 A052486 A052487
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KEYWORD
| nonn,base,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 18 2000
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EXTENSIONS
| More terms from Asher Natan Auel (auela(AT)reed.edu), May 12, 2000
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