|
| |
|
|
A082655
|
|
Number of distinct letters needed to spell English names of numbers 1 through n.
|
|
0
|
|
|
|
3, 5, 7, 9, 11, 13, 13, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Late increases are at twentY, hunDred, thousAnd, Million, Billion, Quadrillion, sePtillion, oCtillion.
Only J and K are never used for English number names. Z is used only for zero.
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
"One" has three letters, "two" brings two new letters (t w), "three" brings two more (h r)...
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn,word,easy
|
|
|
AUTHOR
|
Peter F. Klammer (pklammer(AT)acm.org), May 17 2003
|
|
|
EXTENSIONS
|
|
|
|
STATUS
|
approved
|
| |
|
|
