A161390 Numbers with digits in alphabetical order (in Spanish).

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 21, 22, 23, 26, 27, 28, 29, 31, 33, 41, 42, 43, 44, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 63, 66, 67, 71, 73, 77, 81, 83, 86, 87, 88, 91, 93, 96, 97, 98, 99, 111, 211

Offset

1,3

Comments

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

0 _ cero, 5 _ cinco, 4 _ cuatro, 2 _ dos, 9 _ nueve, 8 _ ocho, 6 _ seis, 7 _ siete, 3 _ tres, 1 _ uno/una. - Reinhard Zumkeller, Oct 05 2014

a(36233) = A247813(512) = 542986731 is the greatest term not containing any repeating digits. - Reinhard Zumkeller, Oct 05 2014

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

(Perl) sub isA161390 {
  shift =~ m/^(0|5*4*2*9*8*6*7*3*1*)$/
}
(Haskell)
import Data.IntSet (fromList, deleteFindMin, union)
a161390 n = a161390_list !! (n-1)
a161390_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 = [0, 5, 4, 2, 9, 8, 6, 7, 3, 1]
-- Reinhard Zumkeller, Oct 18 2014

Crossrefs

Cf. A247813 (subsequence).

Cf. A247750 (Czech), 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), A247759 (Swedish), A247764 (Turkish).

Sequence in context: A336668 A038724 A106001 * A354081 A096106 A321990

Adjacent sequences: A161387 A161388 A161389 * A161391 A161392 A161393

Keyword

nonn,word,base

Author

Claudio Meller, Jun 08 2009

Status

approved