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 A165032 a(n) = image of n under the base-5 Kaprekar map n -> (n with digits sorted into descending order) - (n with digits sorted into ascending order) 30
 0, 0, 0, 0, 0, 4, 0, 4, 8, 12, 8, 4, 0, 4, 8, 12, 8, 4, 0, 4, 16, 12, 8, 4, 0, 24, 24, 48, 72, 96, 24, 0, 24, 48, 72, 48, 24, 24, 48, 72, 72, 48, 48, 48, 72, 96, 72, 72, 72, 72, 48, 48, 48, 72, 96, 48, 24, 24, 48, 72, 48, 24, 0, 24, 48, 72, 48, 24, 24, 48, 96, 72, 48, 48, 48, 72, 72, 72 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,6 LINKS Indranil Ghosh, Table of n, a(n) for n = 0..15625 (terms 0..3125 from Joseph Myers) EXAMPLE For n = 10, 10_10 = 20_5. So, a(10) = 20_5 - 2_5 = 10 - 2 = 8. - Indranil Ghosh, Feb 02 2017 MATHEMATICA a[n_] := With[{dd = IntegerDigits[n, 5]}, FromDigits[ReverseSort[dd], 5] - FromDigits[Sort[dd], 5]]; a /@ Range[0, 100] (* Jean-François Alcover, Jan 08 2020 *) CROSSREFS Cf. A165033. In other bases: A164884 (base 2), A164993 (base 3), A165012 (base 4), A165051 (base 6), A165071 (base 7), A165090 (base 8), A165110 (base 9), A151949 (base 10). Sequence in context: A190103 A176714 A055951 * A088374 A156732 A200341 Adjacent sequences:  A165029 A165030 A165031 * A165033 A165034 A165035 KEYWORD base,nonn AUTHOR Joseph Myers, Sep 04 2009 STATUS approved

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Last modified November 29 19:26 EST 2020. Contains 338769 sequences. (Running on oeis4.)