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 A119799 Numbers m such that m, m+1 and 2*m have the same number of distinct digits in decimal representation. 4
 0, 1, 2, 3, 4, 12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 25, 26, 27, 28, 29, 30, 31, 34, 35, 36, 37, 38, 39, 40, 41, 42, 45, 46, 47, 48, 49, 50, 56, 57, 58, 59, 61, 72, 83, 94, 100, 102, 103, 104, 105, 107, 108, 112, 113, 114, 116, 121, 123, 124, 125, 127, 128, 129, 134 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS A043537(a(n)) = A043537(a(n)+1) = A043537(2*a(n)); intersection of A119797 and A119798. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 EXAMPLE m=59: m, m+1 and 2*m are composed of two distinct digits: 59, 59+1=60 and 2*59=118: therefore 59 is a term. PROG (Haskell) a119799 n = a119799_list !! (n-1) a119799_list = i a119797_list a119798_list where    i xs'@(x:xs) ys'@(y:ys) | x < y     = i xs ys'                            | x > y     = i xs' ys                            | otherwise = x : i xs ys -- Reinhard Zumkeller, Jan 04 2012 CROSSREFS Sequence in context: A096864 A013620 A317498 * A036779 A037339 A285618 Adjacent sequences:  A119796 A119797 A119798 * A119800 A119801 A119802 KEYWORD nonn,base AUTHOR Reinhard Zumkeller, May 25 2006 EXTENSIONS Offset fixed by Reinhard Zumkeller, Jan 04 2012 STATUS approved

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Last modified February 17 15:32 EST 2020. Contains 331998 sequences. (Running on oeis4.)