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 A139819 Complement of repdigit numbers A010785. 7
 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 89 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Identical to (base 10) non-palindromic numbers A029742 up to a(83) = 101 which is a term of this sequence but not in A029742. - M. F. Hasler, Sep 08 2015 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 E. W. Weisstein, Repdigit, World of Mathematics, wolfram.com. Wikipedia, Repdigit FORMULA A202022(a(n)) = 0. - Reinhard Zumkeller, Dec 09 2011 MAPLE isA139819 := proc(n)     convert(n, base, 10) ;     convert(%, set) ;     simplify(nops(%) >1 ) ; end proc: # R. J. Mathar, Jan 17 2017 PROG (Haskell) a139819 n = a139819_list !! (n-1) a139819_list = filter ((== 0) . a202022) [0..] -- Reinhard Zumkeller, Dec 09 2011 (PARI) is_A139819(n)=#Set(digits(n))>1 \\ M. F. Hasler, Sep 08 2015 CROSSREFS Cf. A066484 (subsequence). Cf. A029742 (non-palindromic in base 10), A016038 (in any base), A050813 (in bases 2..10). Sequence in context: A109394 A285687 A139704 * A288040 A031955 A029742 Adjacent sequences:  A139816 A139817 A139818 * A139820 A139821 A139822 KEYWORD nonn,base AUTHOR N. J. A. Sloane, Jun 02 2008 STATUS approved

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Last modified February 20 23:24 EST 2019. Contains 320362 sequences. (Running on oeis4.)