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A110057
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Number of solutions to x == 0 (mod A007954(x)), x in A002113, 10^(n-1) <= x < 10^n.
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0
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9, 1, 2, 3, 7, 3, 6, 4, 9, 9, 18, 11, 24, 17, 25, 12, 45, 16, 53, 22
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..20.
Carlos Rivera, Puzzle 41. Palindromic Carnival, The Prime Puzzles and Problems Connection.
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CROSSREFS
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Cf. A002113, A007954, A117057.
Sequence in context: A177273 A176521 A222218 * A197830 A068151 A199378
Adjacent sequences: A110054 A110055 A110056 * A110058 A110059 A110060
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KEYWORD
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nonn,base,more
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AUTHOR
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Jean-Christophe Colin (colinjeanchristophe(AT)yahoo.fr), Sep 04 2005
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EXTENSIONS
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Edited by R. J. Mathar, Feb 08 2008
Offset changed to 1 and a(1) inserted by Jinyuan Wang, Jun 15 2022
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STATUS
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approved
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