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A247758
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Numbers in decimal representation, such that in Latin their digits are in alphabetic order.
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18
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 40, 41, 43, 44, 45, 46, 47, 50, 51, 53, 55, 56, 57, 60, 61, 63, 66, 67, 70, 71, 73, 77, 80, 81, 83, 84, 85, 86, 87, 88, 90, 91, 93, 94, 95, 96, 97, 98, 99, 100, 110
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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COMMENTS
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List of decimal digits, alphabetically sorted by their names in Latin:
2 _ duo/duae/duo, 9 _ novem, 8 _ octo, 4 _ quattuor, 5 _ quinque, 6 _ sex, 7 _ septem, 3 _ tres/tria, 1 _ unus/una/unum, 0 _ zipherum;
a(131861) = A247808(1023) = 2984567310 is the greatest term not containing any repeating digits.
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LINKS
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PROG
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(Haskell)
import Data.IntSet (fromList, deleteFindMin, union)
a247758 n = a247758_list !! (n-1)
a247758_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 = [2, 9, 8, 4, 5, 6, 7, 3, 1, 0]
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CROSSREFS
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Cf. A247750 (Czech), A247751 (Danish), A247752 (Dutch), A053432 (English), A247753 (Finnish), A247754 (French), A247755 (German), A247756 (Hungarian), A247757 (Italian), A247759 (Norwegian), A247760 (Polish), A247757 (Portuguese), A247761 (Russian), A247762 (Slovak), A161390 (Spanish), A247759 (Swedish), A247764 (Turkish).
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KEYWORD
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nonn,base,word
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AUTHOR
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STATUS
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approved
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