OFFSET
0,1
COMMENTS
"American English" means that there is no "and" in the names of numbers, cf. example. - M. F. Hasler, Aug 26 2020
EXAMPLE
a(20) = 1 for "twEnty" with 1 vowel: 'y' does not count.
a(101) = 6 for "OnE hUndrEd OnE" with 6 vowels: no "and" as in the "British" variant "one hundred and one" which would have 7 vowels.
PROG
(PARI) vowels=Vec("aeiou"); apply( {A037196(n)=#[c|c<-Vec(English(n)), setsearch(vowels, c)]}, [0..104]) \\ see A052360 for English(). - M. F. Hasler, Aug 26 2020
CROSSREFS
Sequences related to vowels: A102869, A158352, A158354 (smallest number with n [distinct] vowels in AE / BE), A158353, A158355 (ditto, increasing), A058179 (all 5 vowels), A058180 (ditto, exactly once), A000852, A000861 (start/end with vowel), A019270, A080518 (self-describing), A059437, A079741, A152592, A174879, A241858, A332068, A332069.
KEYWORD
nonn,word,easy
AUTHOR
EXTENSIONS
More terms from Larry Reeves (larryr(AT)acm.org), Sep 25 2000
Name edited and crossrefs added by M. F. Hasler, Aug 26 2020
a(19)=4 corrected by Sean A. Irvine, Dec 16 2020
STATUS
approved