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A247750 Numbers in decimal representation, such that in Czech their digits are in alphabetic order. 17
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 20, 21, 22, 23, 25, 26, 27, 28, 33, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 53, 55, 56, 57, 63, 66, 73, 76, 77, 83, 85, 86, 87, 88, 90, 91, 92, 93, 95, 96, 97, 98, 99, 100, 103, 105, 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 Czech:
4 _ čtyři, 9 _ devět, 2 _ dva/dvě, 1 _ jeden/jedna/jedno, 0 _ nula, 8 _ osm, 5 _ pět, 7 _ sedm, 6 _ šest, 3 _ tři;
a(144740) = A247800(992) = 4921085763 is the greatest term not containing any repeating digits.
LINKS
PROG
(Haskell)
import Data.IntSet (fromList, deleteFindMin, union)
a247750 n = a247750_list !! (n-1)
a247750_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 = [4, 9, 2, 1, 0, 8, 5, 7, 6, 3]
CROSSREFS
Cf. A247800 (subsequence).
Cf. A247751 (Danish), 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: A334294 A177054 A247760 * A051534 A032961 A033063
KEYWORD
nonn,base,word
AUTHOR
Reinhard Zumkeller, Oct 05 2014
STATUS
approved

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Last modified June 17 11:50 EDT 2024. Contains 373445 sequences. (Running on oeis4.)