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A007005
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Number of characters in the French spelling of n, including spaces and hyphens.
(Formerly M0942)
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8
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4, 2, 4, 5, 6, 4, 3, 4, 4, 4, 3, 4, 5, 6, 8, 6, 5, 8, 8, 8, 5, 11, 10, 11, 12, 10, 9, 10, 10, 10, 6, 12, 11, 12, 13, 11, 10, 11, 11, 11, 8, 14, 13, 14, 15, 13, 12, 13, 13, 13, 9, 15, 14, 15, 16, 14, 13, 14, 14, 14, 8, 14, 13, 14, 15, 13, 12, 13, 13, 13, 12, 16, 14, 15, 17, 15, 14
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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COMMENTS
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This sequence gives the number of characters, including spaces and hyphens, in the French spelling of the numbers; e.g., a(21) = 11 = #"vingt et un", a(22) = 10 = #"vingt-deux". - M. F. Hasler, Nov 18 2009
See A167507 for a variant where only letters are counted, but spaces and hyphens are not counted. - M. F. Hasler, Jun 03 2012
See A052360 for the English version (and A005589 for the letters-only variant); A007208 for the German version. - M. F. Hasler, Sep 20 2014
This refers to the official French spelling, Swiss or Belgian variants ("septante", ...) are not considered here. - M. F. Hasler, Sep 21 2014
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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M. F. Hasler, Table of n, a(n) for n = 0..1000
Wiktionnaire, Annexe:Nombres de 1 à 100 en français. [From M. F. Hasler, Nov 18 2009]
Index entries for sequences related to number of letters in n
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EXAMPLE
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a(0) = 4 = #"zéro"
a(80) = 13 = #"quatre-vingts"
a(999) = 31 = #"neuf cent quatre-vingt-dix-neuf"
a(1000) = 5 = # "mille"
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PROG
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(PARI) A007005(n)=#French(n) /* cf. A167507 for PARI code of "French()" */ - M. F. Hasler, Jun 03 2012
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CROSSREFS
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Cf. A005589, A007208, A052360, A167507.
Sequence in context: A131953 A167508 A167507 * A237869 A066978 A236187
Adjacent sequences: A007002 A007003 A007004 * A007006 A007007 A007008
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KEYWORD
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nonn,word,easy,nice
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AUTHOR
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Simon Plouffe
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EXTENSIONS
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a(71) and a(74) corrected by M. F. Hasler, Jun 03 2012
Example completed by Rémy Sigrist, Sep 09 2018
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STATUS
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approved
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