The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 3 |
| 5 | 2 |
| 6 | 2 |
| 7 | 1 |
| 8 | 2 |
| 9 | 2 |
| 10 | 6 |
| 11 | 2 |
| 12 | 1 |
| 13 | 6 |
| 14 | 2 |
| 15 | 1 |
| 16 | 2 |
| 17 | 3 |
| 18 | 11 |
| 19 | 11 |
| 20 | 2 |
| 21 | 2 |
| 22 | 15 |
| 23 | 15 |
| 24 | 18 |
| 25 | 18 |
| 26 | 18 |
| 27 | 18 |
| 28 | 12 |
| 29 | 12 |
| 30 | 12 |
| 31 | 1 |
[1,1,2,1,3,2,2,1,2,2,6,2,1,6,2,1,2,3,11,11,2,2,15, 15,18,18,18,18,12,12,12,1] |