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 A018194 Number of steps for S(S(..S(n)..)) to converge, where S is the Kempner function A002034. 5
 1, 1, 1, 1, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 2, 3, 1, 3, 1, 2, 2, 2, 1, 2, 3, 2, 4, 2, 1, 2, 1, 3, 2, 2, 2, 3, 1, 2, 2, 2, 1, 2, 1, 2, 3, 2, 1, 3, 3, 3, 2, 2, 1, 4, 2, 2, 2, 2, 1, 2, 1, 2, 2, 3, 2, 2, 1, 2, 2, 2, 1, 3, 1, 2, 3, 2, 2, 2, 1, 3, 4, 2, 1, 2, 2, 2, 2, 2, 1, 3, 2, 2, 2, 2, 2, 3, 1, 3, 2, 3, 1, 2, 1, 2, 2, 2, 1, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,6 COMMENTS a(A046022(n)) = 1. [Reinhard Zumkeller, Mar 09 2012] REFERENCES Henry Ibstedt, "Smarandache Iterations", Smarandache Notions Journal, (submitted), 1996. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 PROG (Haskell) a018194 n = 1 + length (takeWhile (/= 0) \$ zipWith (-) ks \$ tail ks)    where ks = iterate a002034 n -- Reinhard Zumkeller, Mar 09 2012 CROSSREFS Cf. A002034. Sequence in context: A128065 A329744 A277889 * A338630 A286281 A229830 Adjacent sequences:  A018191 A018192 A018193 * A018195 A018196 A018197 KEYWORD nonn AUTHOR Henry Ibstedt (Glimminge 2036, 28060 Broby, Sweden) EXTENSIONS Corrected and extended by David W. Wilson May 15 1997 STATUS approved

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Last modified May 11 16:38 EDT 2021. Contains 343803 sequences. (Running on oeis4.)