A112349 Total number of letters of the official romanization (pinyin) of the word for n in Mandarin Chinese.
4, 2, 2, 3, 2, 2, 3, 2, 2, 3, 3, 5, 5, 6, 5, 5, 6, 5, 5, 6, 5, 7, 7, 8, 7, 7, 8, 7, 7, 8, 6, 8, 8, 9, 8, 8, 9, 8, 8, 9, 5, 7, 7, 8, 7, 7, 8, 7, 7, 8, 5, 7, 7, 8, 7, 7, 8, 7, 7, 8, 6, 8, 8, 9, 8, 8, 9, 8, 8, 9, 5, 7, 7, 8, 7, 7, 8, 7, 7, 8, 5, 7, 7, 8, 7, 7, 8, 7, 7, 8, 6, 8, 8, 9, 8, 8, 9, 8, 8, 9, 5
Offset: 0
Examples
a(21) = 7 because the Chinese word for 21 is, in the official romanization (pinyin), "er shi yi", which has seven letters.
References
- Any Chinese dictionary.
Links
- Felix Fröhlich, Table of n, a(n), pinyin for n = 0..100
- Omniglot, Numbers in Mandarin Chinese.
- Wikipedia, Chinese numerals.
- Wikipedia, Pinyin.
- Index entries for sequences related to number of letters in n
Extensions
Name clarified by Felix Fröhlich, Jan 15 2017