The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 3 |
| 5 | 1 |
| 6 | 4 |
| 7 | 1 |
| 8 | 6 |
| 9 | 1 |
| 10 | 5 |
| 11 | 1 |
| 12 | 14 |
| 13 | 2 |
| 14 | 9 |
| 15 | 4 |
| 16 | 28 |
| 17 | 1 |
| 18 | 33 |
| 19 | 14 |
| 20 | 61 |
[1,2,1,3,1,4,1,6,1,5,1,14,2,9,4,28,1,33,14,61] |