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 A247751 Numbers in decimal representation, such that in Danish their digits are in alphabetic order. 20
 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 23, 33, 40, 42, 43, 44, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 58, 59, 62, 63, 66, 67, 72, 73, 77, 82, 83, 86, 87, 88, 90, 92, 93, 96, 97, 98, 99, 100, 102, 103, 106, 107, 108 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS List of decimal digits, alphabetically sorted by their names in Danish: 1 _ en/et, 5 _ fem, 4 _ fire, 9 _ ni, 0 _ nul, 8 _ otte, 6 _ seks, 7 _ syv, 2 _ to, 3 _ tre; a(124929) = A247801(992) = 1549086723 is the greatest term not containing any repeating digits. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 Wikipedia, Zahlen in unterschiedlichen Sprachen Wikipedia, List of numbers in various languages PROG (Haskell) import Data.IntSet (fromList, deleteFindMin, union) a247751 n = a247751_list !! (n-1) a247751_list = 0 : f (fromList [1..9]) where    f s = x : f (s' `union`          fromList (map (+ 10 * x) \$ dropWhile (/= mod x 10) digs))      where (x, s') = deleteFindMin s    digs = [1, 5, 4, 9, 0, 8, 6, 7, 2, 3] CROSSREFS Cf. A247801 (subsequence). Cf. A247750 (Czech), A247752 (Dutch), A053432 (English), A247753 (Finnish), A247754 (French), A247755 (German), A247756 (Hungarian), A247757 (Italian), A247758 (Latin), A247759 (Norwegian), A247760 (Polish), A247757 (Portuguese), A247761 (Russian), A247762 (Slovak), A161390 (Spanish), A247759 (Swedish), A247764 (Turkish). Sequence in context: A275776 A022465 A296762 * A059962 A057605 A326872 Adjacent sequences:  A247748 A247749 A247750 * A247752 A247753 A247754 KEYWORD nonn,base,word AUTHOR Reinhard Zumkeller, Oct 05 2014 STATUS approved

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Last modified August 13 00:27 EDT 2020. Contains 336441 sequences. (Running on oeis4.)