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A151951 a(1) = 1113; thereafter a(n) = (a(n-1) with digits sorted into descending order) - (a(n-1) with digits sorted into ascending order) (see the Kaprekar map, A151949). 2
1113, 1998, 8082, 8532, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174, 6174 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..40.

Index entries for the Kaprekar map

CROSSREFS

Cf. A099009, A151947, A151949, A151950, A069746.

Sequence in context: A225351 A066484 A199982 * A190017 A027622 A259295

Adjacent sequences:  A151948 A151949 A151950 * A151952 A151953 A151954

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Aug 18 2009

STATUS

approved

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Last modified March 30 16:27 EDT 2017. Contains 284302 sequences.