The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 1 |
| 7 | 3 |
| 8 | 1 |
| 9 | 3 |
| 10 | 4 |
| 11 | 3 |
| 12 | 1 |
| 13 | 9 |
| 14 | 2 |
| 15 | 4 |
| 16 | 8 |
| 17 | 6 |
| 18 | 5 |
| 19 | 13 |
| 20 | 3 |
| 21 | 13 |
| 22 | 19 |
| 23 | 11 |
| 24 | 3 |
| 25 | 32 |
[0,1,1,1,2,1,3,1,3,4,3,1,9,2,4,8,6,5,13,3,13,19, 11,3,32] |