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A157964 Consider the English number names for numbers from 1 to n, sorted in lexicographic order: the number name for a(n) gives the median in this list. 1
1, 1, 3, 1, 1, 1, 7, 1, 1, 1, 1, 1, 7, 1, 1, 1, 7, 1, 1, 1, 7, 7, 17, 17, 6, 6, 16, 16, 10, 10, 13, 13, 30, 30, 35, 35, 34, 35, 34, 35, 35, 38, 38, 30, 30, 13, 13, 10, 10, 16, 16, 6, 6, 17, 17, 7, 7, 1, 1, 1, 7, 7, 17, 17, 6, 6, 16, 16, 60, 16, 16, 6, 6, 72, 72, 73, 73, 76, 76, 77, 77, 71 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

0 <= #{i: 1<=i<=n and ENW(i)<=ENW(a(n))} - #{i: 1<=i<=n and ENW(i)>ENW(a(n))} <= 1, where ENW(n) = number word for n in English.

LINKS

R. Zumkeller, Table of n, a(n) for n = 1..1000

Wikipedia, Median

Robert G. Wilson v, English names for the numbers from 0 to 11159 without spaces or hyphens

EXAMPLE

a(7)=7 ->seven: five<four<one<[seven]<six<three<two;

a(8)=1 ->one: eight<five<four<[one]<seven<six<three<two;

a(9)=1 ->one: eight<five<four<nine<[one]<seven<six<three<two.

CROSSREFS

A000027, A157943.

Sequence in context: A179701 A276996 A102480 * A140670 A293682 A276651

Adjacent sequences:  A157961 A157962 A157963 * A157965 A157966 A157967

KEYWORD

nonn,word,look

AUTHOR

Reinhard Zumkeller, Mar 10 2009

STATUS

approved

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Last modified August 26 03:38 EDT 2019. Contains 326324 sequences. (Running on oeis4.)