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A139132
The following sequence of French words has the property that it tells which letters in the sequence are vowels: un, quatre, cinq, huit, dix, quatorze, quinze, dix-huit, vingt et un, vingt-deux, ... Now replace the words with their numerical values.
2
1, 4, 5, 8, 10, 14, 15, 18, 21, 22, 24, 27, 29, 30, 33, 35, 38, 39, 42, 46, 48, 51, 56, 57, 60, 65, 66, 69, 71, 76, 80, 85, 86, 90, 93, 96, 99, 102, 103, 107, 110, 112, 117, 120, 122, 123, 127, 130, 132, 133, 136, 137, 139, 142, 144, 145, 148
OFFSET
1,2
COMMENTS
If there is a choice, pick the smallest number (or word) that makes sense. Hyphens, accents and spaces are ignored.
REFERENCES
E. Angelini, "Jeux de suites", in Dossier Pour La Science, pp. 32-35, Volume 59 (Jeux math'), April/June 2008, Paris.
EXAMPLE
The first vowel is the "u" in "un", in position 1 (un), the second vowel is the "u" in "quatre", the fourth letter in the sentence (i.e. in position 4, quatre) and so on.
CROSSREFS
For an English version see A019270.
Sequence in context: A059659 A140459 A319515 * A295068 A022435 A190394
KEYWORD
nonn,word,easy
AUTHOR
N. J. A. Sloane (based on Angelini's article), Jun 08 2008
EXTENSIONS
More terms from Sean A. Irvine, Aug 27 2012
STATUS
approved