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 A081848 Number of numbers whose base-3/2 expansion (see A024629) has n digits. 35
 3, 3, 3, 6, 9, 12, 18, 27, 42, 63, 93, 141, 210, 315, 474, 711, 1065, 1599, 2397, 3597, 5394, 8091, 12138, 18207, 27309, 40965, 61446, 92169, 138255, 207381, 311073, 466608, 699912, 1049868, 1574802, 2362203, 3543306, 5314959, 7972437, 11958657 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Run lengths in A246435. - Reinhard Zumkeller, Sep 05 2014 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..1000 B. Chen, R. Chen, J. Guo, S. Lee et al., On Base 3/2 and its sequences, arXiv:1808.04304 [math.NT], 2018. J. S. Tanton, A collection of research problems. FORMULA For n > 1, a(n) = A070885(n+1) - A070885(n). - Tom Edgar, Jun 25 2014 a(n) = 3*A073941(n). - Tom Edgar, Jul 21 2014 EXAMPLE a(1) = 3 because 0, 1 and 2 each have 1 digit. PROG (Haskell) a081848 n = a081848_list !! (n-1) a081848_list = 3 : tail (zipWith (-) (tail a070885_list) a070885_list) -- Reinhard Zumkeller, Sep 05 2014 CROSSREFS Cf. A024629, A070885, A073941, A246435. Sequence in context: A141094 A132972 A113920 * A079988 A212091 A061021 Adjacent sequences:  A081845 A081846 A081847 * A081849 A081850 A081851 KEYWORD easy,nonn,base AUTHOR N. J. A. Sloane, Apr 13 2003 EXTENSIONS More terms from David Wasserman, Jun 28 2004 Edited by Charles R Greathouse IV, Aug 02 2010 STATUS approved

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Last modified December 5 12:24 EST 2021. Contains 349557 sequences. (Running on oeis4.)