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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 1 |
| 7 | 4 |
| 8 | 15 |
| 9 | 6 |
| 10 | 1 |
| 11 | 12 |
| 12 | 212 |
| 13 | 296 |
| 14 | 36 |
| 15 | 1 |
| 16 | 36 |
| 17 | 3712 |
| 18 | 26304 |
| 19 | 9024 |
| 20 | 288 |
| 21 | 1 |
| 22 | 144 |
| 23 | 96256 |
| 24 | 4689792 |
| 25 | 7708608 |
| 26 | 492480 |
| 27 | 2240 |
| 28 | 2 |
| 29 | 576 |
| 30 | 3423168 |
| 31 | 1263257856 |
| 32 | 15216574464 |
| 33 | 4137827328 |
| 34 | 30233088 |
| 35 | 20736 |
| 36 | 4 |
| 37 | 2880 |
| 38 | 158521536 |
| 39 | 603321053184 |
[1,1,1,2,3,1,4,15,6,1,12,212,296,36,1,36,3712, 26304,9024,288,1,144,96256,4689792,7708608,492480, 2240,2,576,3423168,1263257856,15216574464, 4137827328,30233088,20736,4,2880,158521536, 603321053184] |