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A151955 a(1) = 102; 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). 4
102, 198, 792, 693, 594, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495, 495 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
102 is the smallest starting value which does not converge to 0.
Converges to the fixed point 495. For the list of fixed points see A099009.
LINKS
CROSSREFS
Sequence in context: A006316 A242068 A053326 * A244387 A044334 A044715
KEYWORD
nonn,base
AUTHOR
Harvey P. Dale. Aug 18 2009
STATUS
approved

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Last modified February 27 12:56 EST 2024. Contains 370375 sequences. (Running on oeis4.)