The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 3 |
| 7 | 1 |
| 8 | 1 |
| 9 | 4 |
| 10 | 5 |
| 11 | 7 |
| 12 | 9 |
| 13 | 11 |
| 14 | 15 |
| 15 | 22 |
| 16 | 38 |
| 17 | 45 |
| 18 | 87 |
| 19 | 93 |
[1,1,1,1,2,1,3,1,1,4,5,7,9,11,15,22,38,45,87,93] |