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A247754 Numbers in decimal representation, such that in French their digits are in alphabetic order. 17
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 33, 40, 41, 43, 44, 46, 47, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 63, 66, 70, 71, 73, 76, 77, 80, 81, 83, 84, 86, 87, 88, 89, 90, 91, 93, 94, 96, 97, 99, 100, 110 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
List of decimal digits, alphabetically sorted by their names in French:
5 _ cinq, 2 _ deux, 8 _ huit, 9 _ neuf, 4 _ quatre, 7 _ sept, 6 _ six, 3 _ trois, 1 _ un, 0 _ zéro;
a(129217) = A247804(1023) = 5289476310 is the greatest term not containing any repeating digits.
LINKS
PROG
(Haskell)
import Data.IntSet (fromList, deleteFindMin, union)
a247754 n = a247754_list !! (n-1)
a247754_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 = [5, 2, 8, 9, 4, 7, 6, 3, 1, 0]
CROSSREFS
Cf. A247804 (subsequence).
Cf. A247750 (Czech), A247751 (Danish), A247752 (Dutch), A053432 (English), A247753 (Finnish), 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: A273376 A247758 A247757 * A084383 A032873 A072543
KEYWORD
nonn,base,word
AUTHOR
Reinhard Zumkeller, Oct 05 2014
STATUS
approved

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Last modified May 19 05:56 EDT 2024. Contains 372666 sequences. (Running on oeis4.)