

A037196


Number of vowels in the American English name of n.


9



2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 3, 2, 3, 4, 3, 3, 4, 4, 4, 1, 3, 2, 3, 3, 3, 2, 3, 3, 3, 1, 3, 2, 3, 3, 3, 2, 3, 3, 3, 1, 3, 2, 3, 3, 3, 2, 3, 3, 3, 1, 3, 2, 3, 3, 3, 2, 3, 3, 3, 1, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 4, 3, 4, 4, 4, 3, 4, 4, 4, 2, 4, 3, 4, 4, 4, 3, 4, 4, 4, 2, 4, 3, 4, 4, 4, 3, 4, 4, 4, 4, 6, 5, 6, 6
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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


LINKS

Table of n, a(n) for n=0..104.


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)=#[cc<Vec(English(n)), setsearch(vowels, c)]}, [0..104]) \\ see A052360 for English().  M. F. Hasler, Aug 26 2020


CROSSREFS

Cf. A005589, A052360 (number of letters in English name of numbers with/without spaces and dashes).
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 (selfdescribing), A059437, A079741, A152592, A174879, A241858, A332068, A332069.
Sequence in context: A105697 A340456 A080757 * A169818 A116543 A256911
Adjacent sequences: A037193 A037194 A037195 * A037197 A037198 A037199


KEYWORD

nonn,word,easy


AUTHOR

N. J. A. Sloane.


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



