

A007005


Number of characters in the French spelling of n, including spaces and hyphens.
(Formerly M0942)


6



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
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OFFSET

0,1


COMMENTS

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 = #"vingtdeux".  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 lettersonly 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


REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).


LINKS

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


EXAMPLE

a(0) = 4 = #"zéro"
a(80) = 13 = #"quatrevingts"
a(999) = 31 = #"neuf cent quatrevingtdixneuf"
a(1000) = 5 = # "mille"


PROG

(PARI) A007005(n)=#French(n) /* cf. A167507 for PARI code of "French()" */  M. F. Hasler, Jun 03 2012


CROSSREFS

Cf. A005589, A007208, A052360, A167507.
Sequence in context: A131953 A167508 A167507 * A237869 A066978 A236187
Adjacent sequences: A007002 A007003 A007004 * A007006 A007007 A007008


KEYWORD

nonn,word,easy,nice


AUTHOR

Simon Plouffe


EXTENSIONS

a(71) and a(74) corrected by M. F. Hasler, Jun 03 2012
Example completed by Rémy Sigrist, Sep 09 2018


STATUS

approved



