A331498 Position of the first letter of n (in French) in the alphabet.
26, 21, 4, 20, 17, 3, 19, 19, 8, 14, 4, 15, 4, 20, 17, 17, 19, 4, 4, 4, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19
Offset: 0
Examples
'Un' (French for 'one') begins with 'U', the twenty-first letter of the alphabet, hence a(1)=21.
Links
- Le conjugueur, Most used numbers (from Le Figaro)
Crossrefs
Cf. A005606.
Programs
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Mathematica
a[n_] := LetterNumber @ Characters[IntegerName[n, "French"]][[1]]; Array[a, 100, 0] (* Amiram Eldar, Jan 18 2020 *)
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Python
from num2words import num2words import unidecode def A331498(n): return ord(unidecode.unidecode(num2words(n, lang='fr')).lower()[0]) - 96 # Chai Wah Wu, Feb 27 2020