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 A119352 Smallest base b > 1 such that n in base b uses no digit b-1. 4
 2, 3, 4, 3, 3, 4, 4, 5, 4, 3, 3, 5, 3, 3, 6, 5, 4, 4, 4, 6, 4, 4, 4, 7, 4, 4, 4, 3, 3, 7, 3, 3, 4, 4, 4, 5, 3, 3, 4, 3, 3, 4, 4, 5, 6, 6, 6, 9, 6, 6, 5, 5, 5, 5, 6, 5, 5, 5, 5, 7, 5, 5, 5, 5, 4, 4, 4, 5, 4, 4, 4, 7, 4, 4, 4, 5, 5, 5, 5, 6, 4, 3, 3, 5, 3, 3, 4, 5, 4, 4, 3, 3, 5, 3, 3, 9, 4, 4, 4, 6, 4, 4, 4, 7, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..10000 FORMULA 7 is 111_2 (has 1), 21_3 (has 2), 13_4 (has 3), but 12_5 (no 4), so a(7)=5. PROG (Haskell) a119352 n = f 2 n where    f b x = g x where      g 0 = b      g z = if r == b - 1 then f (b + 1) n else g z'            where (z', r) = divMod z b -- Reinhard Zumkeller, Apr 12 2015 CROSSREFS Cf. A119353, A119354, A106370. Sequence in context: A274007 A065870 A123699 * A205010 A204932 A079086 Adjacent sequences:  A119349 A119350 A119351 * A119353 A119354 A119355 KEYWORD base,nonn AUTHOR Franklin T. Adams-Watters, May 15 2006 STATUS approved

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