The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 6 |
| 9 | 8 |
| 10 | 9 |
| 11 | 11 |
| 12 | 55 |
| 13 | 77 |
| 14 | 88 |
| 15 | 444 |
| 16 | 555 |
| 17 | 666 |
| 18 | 888 |
| 19 | 999 |
| 20 | 1111 |
| 21 | 4444 |
| 22 | 5555 |
| 23 | 6666 |
| 24 | 9999 |
| 25 | 11111 |
| 26 | 55555 |
| 27 | 99999 |
| 28 | 333333 |
| 29 | 444444 |
| 30 | 666666 |
| 31 | 888888 |
| 32 | 999999 |
| 33 | 1111111 |
| 34 | 7777777 |
| 35 | 33333333 |
| 36 | 88888888 |
| 37 | 333333333 |
| 38 | 999999999 |
| 39 | 5555555555 |
| 40 | 222222222222 |
| 41 | 44444444444444 |
[1,1,1,2,3,4,5,6,8,9,11,55,77,88,444,555,666,888, 999,1111,4444,5555,6666,9999,11111,55555,99999, 333333,444444,666666,888888,999999,1111111, 7777777,33333333,88888888,333333333,999999999, 5555555555,222222222222,44444444444444] |