A247756 Numbers in decimal representation, such that in Hungarian their digits are in alphabetic order.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 24, 25, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 44, 45, 48, 55, 60, 62, 64, 65, 66, 67, 68, 69, 70, 72, 74, 75, 77, 78, 79, 85, 88, 90, 94, 95, 98, 99, 100, 105, 108, 110

Offset

1,3

Comments

List of decimal digits, alphabetically sorted by their names in Hungarian:

1 _ egy, 3 _ három, 6 _ hat, 7 _ hét, 2 _ kettő, 9 _ kilenc, 4 _ négy, 0 _ nulla, 8 _ nyolc, 5 _ öt.

a(127748) = A247806(1020) = 1367294085 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)
a247756 n = a247756_list !! (n-1)
a247756_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, 3, 6, 7, 2, 9, 4, 0, 8, 5]

Crossrefs

Cf. A247806 (subsequence).

Cf. A247750 (Czech), A247751 (Danish), A247752 (Dutch), A053432 (English), A247753 (Finnish), A247754 (French), A247755 (German), A247757 (Italian), A247758 (Latin), A247759 (Norwegian), A247760 (Polish), A247757 (Portuguese), A247761 (Russian), A247762 (Slovak), A161390 (Spanish), A247759 (Swedish), A247764 (Turkish).

Sequence in context: A250251 A138234 A324720 * A032520 A034837 A096105

Adjacent sequences: A247753 A247754 A247755 * A247757 A247758 A247759

Keyword

nonn,base,word

Author

Reinhard Zumkeller, Oct 05 2014

Status

approved