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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 1 |
| 9 | 4 |
| 10 | 1 |
| 11 | 6 |
| 12 | 1 |
| 13 | 14 |
| 14 | 3 |
| 15 | 43 |
| 16 | 10 |
| 17 | 138 |
| 18 | 29 |
| 19 | 612 |
| 20 | 94 |
| 21 | 3177 |
| 22 | 321 |
| 23 | 17102 |
| 24 | 1262 |
| 25 | 109974 |
| 26 | 7231 |
| 27 | 884546 |
| 28 | 51504 |
[1,1,1,1,1,1,2,1,4,1,6,1,14,3,43,10,138,29,612,94, 3177,321,17102,1262,109974,7231,884546,51504] |