|
| |
|
|
A000916
|
|
a(2n) = n+2, a(2n-1) = smallest number requiring n+2 letters in English.
|
|
5
| |
|
|
1, 3, 4, 4, 3, 5, 11, 6, 15, 7, 13, 8, 17, 9, 24, 10, 23, 11, 73, 12, 3000, 13, 11000, 14, 15000, 15, 101, 16, 104, 17, 103, 18, 111, 19, 115, 20, 113, 21, 117, 22, 124, 23, 123, 24, 173, 25, 323, 26, 373, 27, 1104, 28, 1103, 29, 1111, 30
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| Requires presence of "and" at appropriate place, e.g. "one hundred and one" [Sean A. Irvine, Aug 29, 2011].
|
|
|
CROSSREFS
| Cf. A001166, A014388, A045494, A045495.
Sequence in context: A019917 A085005 A035004 * A014241 A199185 A143490
Adjacent sequences: A000913 A000914 A000915 * A000917 A000918 A000919
|
|
|
KEYWORD
| nonn,word,easy
|
|
|
AUTHOR
| Jacques Haubrich (jhaubrich(AT)freeler.nl)
|
|
|
EXTENSIONS
| More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Aug 28 2011
|
| |
|
|
