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A080519
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Positions of the letter t in the French phrase enumerating these positions, "T est la premiere, quatrieme, dix-huitieme, trentieme, trente-cinqieme,... lettre dans cette phrase..."
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3
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1, 4, 18, 30, 35, 39, 44, 48, 59, 63, 79, 84, 96, 101, 113, 129, 131, 146, 162, 169, 173, 182, 189, 201, 203, 213, 214, 226, 231, 243, 244, 248, 251, 261, 268, 280, 287, 300, 307, 320, 327, 329, 341, 345, 352, 364, 368, 375, 391, 393, 407, 408, 424, 425
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| The phrase ends "... où les espaces, les virgules et les traits d'union ne comptent pas." This means that spaces, commas and hyphens are not counted.
French version of A005224.
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LINKS
| E.Angelini, 27 phrases autoreferentes.
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EXAMPLE
| "T est la première, quatrième, dix-huitième, trentième, ... lettre de cette phrase..." has a 't' in 1st, 4th, 18th, 30th... position.
But the dots represent an infinite list of words: In contrast to the versions starting with another letter (except for 'e', 'i' and 'm' which share this property), the phrase cannot be finite, because each term adds at least 2 't's on the average. This will remain true even after reaching "mille" (thousand), "un million", "un milliard"... because these t-less words occur almost always accompanied by coefficients between 1 and 1000.
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PROG
| (PARI) {c=0; apply(x -> x>"@" & c++ & x=="t" & print1(c", "), Vec("t est la premiere, quatrieme, dix-huitieme, trentieme, trente-cinquieme, trente-neuvieme, quarante-quatrieme, quarante-huitieme, cinquante-neuvieme, soixante-troisieme, soixante-dix-neuvieme, quatre-vingt-quatrieme, quatre-vingt-seizieme, cent et unieme, cent treizieme, cent vingt-neuvieme cent trente et unieme, cent quarante-sixieme, cent soixante-deuxieme, cent soixante-neuvieme, cent soixante-treizieme, cent quatre-vingt-deuxieme, cent quatre-vingt-neuvieme, deux cent et unieme, deux cent troisieme, deux cent treizieme, ...")); } \\ - M. F. Hasler, Sep 30 2011
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CROSSREFS
| Cf. Aronson's sequence A005224, A080517-A080520.
Sequence in context: A166749 A103067 * A120407 A033166 A049726 A130656
Adjacent sequences: A080516 A080517 A080518 * A080520 A080521 A080522
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KEYWORD
| nonn,word
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 21 2003
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