The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 4 |
| 7 | 6 |
| 8 | 5 |
| 9 | 4 |
| 10 | 7 |
| 11 | 8 |
| 12 | 7 |
| 13 | 6 |
| 14 | 5 |
| 15 | 9 |
| 16 | 8 |
| 17 | 7 |
| 18 | 6 |
| 19 | 10 |
| 20 | 8 |
| 21 | 11 |
| 22 | 10 |
| 23 | 9 |
| 24 | 8 |
| 25 | 7 |
| 26 | 12 |
| 27 | 11 |
| 28 | 9 |
| 29 | 8 |
| 30 | 13 |
| 31 | 11 |
[1,2,3,4,5,4,6,5,4,7,8,7,6,5,9,8,7,6,10,8,11,10,9, 8,7,12,11,9,8,13,11] |