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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 March 20 13:18 EDT 2019. Contains 321345 sequences. (Running on oeis4.)