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A331498
Position of the first letter of n (in French) in the alphabet.
1
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
0,1
EXAMPLE
'Un' (French for 'one') begins with 'U', the twenty-first letter of the alphabet, hence a(1)=21.
MATHEMATICA
a[n_] := LetterNumber @ Characters[IntegerName[n, "French"]][[1]]; Array[a, 100, 0] (* Amiram Eldar, Jan 18 2020 *)
PROG
(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
CROSSREFS
Cf. A005606.
Sequence in context: A203597 A040652 A154295 * A277685 A072360 A205322
KEYWORD
nonn,word
AUTHOR
J. Marcel Feenstra, Jan 18 2020
STATUS
approved