cp's OEIS Frontend

A247809 Numbers in decimal representation with distinct digits, such that in Norwegian and Swedish their digits are in alphabetic order.

%I A247809 #20 Aug 23 2019 14:00:18
%S A247809 0,1,2,3,4,5,6,7,8,9,10,12,13,14,15,16,17,19,23,40,42,43,46,47,49,50,
%T A247809 52,53,54,56,57,59,62,63,67,69,72,73,79,80,81,82,83,84,85,86,87,89,92,
%U A247809 93,102,103,106,107,109,123,140,142,143,146,147,149,150,152
%N A247809 Numbers in decimal representation with distinct digits, such that in Norwegian and Swedish their digits are in alphabetic order.
%C A247809 List of decimal digits, alphabetically sorted by their names in Norwegian resp. Swedish:  8 _ åtte _ åtta, 1 _ en/ett _ en/ett, 5 _ fem _ fem, 4 _ fire _ fyra, 0 _ null _ noll, 6 _ seks _ sex, 7 _ syv/sju _ sju, 9 _ ti _ tio, 2 _ to _ två, 3 _ tre _ tre;
%C A247809 Finite sequence with last and largest term a(992) = 8154067923.
%C A247809 From _Charles Coker_, Jul 18 2019: (Start)
%C A247809 The word tio (10) should probably be nio (9). Sources: 1) Wikipedia, List of numbers in various languages: Germanic languages, 2) Swedish Language Blog, Swedish numbers 1-100.
%C A247809 The names are sorted using English sorting rules. In Swedish, the letter Å/å, like in åtta (8), comes after z. Alphabetical order is a, ..., z, å, ä, ö. Using Swedish sorting rules and nio for 9, the sequence for 0-9 would be 1, 5, 4, 9, 0, 6, 7, 3, 2, 8. Sources: 1) Swedish speaker (not me), 2) Wikipedia: Swedish alphabet.
%C A247809 (End)
%H A247809 Reinhard Zumkeller, <a href="/A247809/b247809.txt">Table of n, a(n) for n = 1..992</a>
%H A247809 Swedish Language Blog, <a href="https://blogs.transparent.com/swedish/swedish-numbers-1-100/">Swedish numbers 1-100</a>
%H A247809 Wikipedia, <a href="http://de.wikipedia.org/wiki/Zahlen_in_unterschiedlichen_Sprachen#0_bis_10">Zahlen in unterschiedlichen Sprachen</a>
%H A247809 Wikipedia, <a href="http://en.wikipedia.org/wiki/List_of_numbers_in_various_languages">List of numbers in various languages</a>
%H A247809 Wikipedia, <a href="https://en.wikipedia.org/wiki/List_of_numbers_in_various_languages#Germanic_languages">List of numbers in various languages: Germanic languages</a>
%H A247809 Wikipedia, <a href="https://en.wikipedia.org/wiki/Swedish_alphabet">Swedish alphabet</a>
%o A247809 (Haskell)
%o A247809 import Data.IntSet (fromList, deleteFindMin, union)
%o A247809 import qualified Data.IntSet as Set (null)
%o A247809 a247809 n = a247809_list !! (n-1)
%o A247809 a247809_list = 0 : f (fromList [1..9]) where
%o A247809    f s | Set.null s = []
%o A247809        | otherwise  = x : f (s' `union`
%o A247809          fromList (map (+ 10 * x) $ tail $ dropWhile (/= mod x 10) digs))
%o A247809        where (x, s') = deleteFindMin s
%o A247809    digs = [8, 1, 5, 4, 0, 6, 7, 9, 2, 3]
%Y A247809 Intersection of A010784 and A247759.
%Y A247809 Cf. A247800 (Czech), A247801 (Danish), A247802 (Dutch), A053433 (English), A247803 (Finnish), A247804 (French), A247805 (German), A247806 (Hungarian), A247807 (Italian), A247808 (Latin), A247810 (Polish), A247807 (Portuguese), A247811 (Russian), A247812 (Slovak), A247813 (Spanish), A247814 (Turkish).
%K A247809 nonn,base,word,fini,full
%O A247809 1,3
%A A247809 _Reinhard Zumkeller_, Oct 05 2014