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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 3 |
| 4 | 6 |
| 5 | 35 |
| 6 | 6 |
| 7 | 13 |
| 8 | 396 |
| 9 | 396 |
| 10 | 13 |
| 11 | 28 |
| 12 | 4429 |
| 13 | 17480 |
| 14 | 4429 |
| 15 | 28 |
| 16 | 60 |
| 17 | 49387 |
| 18 | 780692 |
| 19 | 780692 |
| 20 | 49387 |
| 21 | 60 |
| 22 | 129 |
| 23 | 550264 |
| 24 | 34704624 |
| 25 | 140268025 |
| 26 | 34704624 |
| 27 | 550264 |
| 28 | 129 |
| 29 | 277 |
| 30 | 6129659 |
| 31 | 1542552756 |
[1,3,3,6,35,6,13,396,396,13,28,4429,17480,4429,28, 60,49387,780692,780692,49387,60,129,550264, 34704624,140268025,34704624,550264,129,277, 6129659,1542552756] |