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.

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.

Links

Table of n, a(n) for n=1..57.

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

Adjacent sequences: A139129 A139130 A139131 * A139133 A139134 A139135

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