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 A259921 a(n) is the smallest positive integer > a(n-1) with exactly n letters when written in Spanish. 0
 1, 3, 5, 15, 30, 40, 50, 103, 105, 115, 130, 140, 150, 204, 214, 240, 250, 316, 317, 325 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,2 COMMENTS a(6) = 15 = "quince" (6 letters); 4 = "cuatro" also has 6 letters but is smaller than 5 = a(5) and this sequence is strictly increasing. Spaces are not counted, so, e.g., "ciento tres" and "doscientos cuatro" are treated as a 10-letter word and a 16-letter word, respectively. LINKS Wikipedia, Anexo:Nombres de los números en español EXAMPLE a( 3) =   1 for the  3-letter word "uno"; a( 4) =   3 for the  4-letter word "tres"; a( 5) =   5 for the  5-letter word "cinco"; a( 6) =  15 for the  6-letter word "quince"; a( 7) =  30 for the  7-letter word "treinta"; a( 8) =  40 for the  8-letter word "cuarenta"; a( 9) =  50 for the  9-letter word "cincuenta"; a(10) = 103 for the 10-letter word "cientotres"; ... a(16) = 204 for the 16-letter word "doscientoscuatro"; .... CROSSREFS Cf. A084390 (this sequence for English), A161353 (this sequence without the increasing condition). Sequence in context: A018454 A126087 A148498 * A292689 A286521 A127978 Adjacent sequences:  A259918 A259919 A259920 * A259922 A259923 A259924 KEYWORD nonn,word,less AUTHOR Rodolfo Kurchan, Jul 08 2015 STATUS approved

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Last modified May 27 18:56 EDT 2020. Contains 334664 sequences. (Running on oeis4.)