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A056965
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a(n) = n - (reversal of digits of n).
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26
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, -9, -18, -27, -36, -45, -54, -63, -72, 18, 9, 0, -9, -18, -27, -36, -45, -54, -63, 27, 18, 9, 0, -9, -18, -27, -36, -45, -54, 36, 27, 18, 9, 0, -9, -18, -27, -36, -45, 45, 36, 27, 18, 9, 0, -9, -18, -27, -36, 54, 45, 36, 27, 18, 9, 0, -9, -18, -27, 63, 54, 45, 36, 27, 18, 9, 0, -9, -18, 72, 63, 54
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graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,11
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COMMENTS
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a(n) is a multiple of 9.
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LINKS
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FORMULA
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EXAMPLE
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a(17) = 17 - 71 = -54.
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MAPLE
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a:= n-> (s-> n-parse(cat(s[-i]$i=1..length(s))))(""||n):
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MATHEMATICA
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Table[n - FromDigits[Reverse[IntegerDigits[n]]], {n, 0, 82}] (* Jayanta Basu, Jul 11 2013 *)
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PROG
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(Haskell)
(Python)
(PARI) a(n) = n - fromdigits(Vecrev(digits(n))); \\ Michel Marcus, Dec 20 2023
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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