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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 6 |
| 4 | 3 |
| 5 | 1 |
| 6 | 56 |
| 7 | 21 |
| 8 | 6 |
| 9 | 1 |
| 10 | 715 |
| 11 | 220 |
| 12 | 55 |
| 13 | 10 |
| 14 | 1 |
| 15 | 11628 |
| 16 | 3060 |
| 17 | 680 |
| 18 | 120 |
| 19 | 15 |
| 20 | 1 |
| 21 | 230230 |
| 22 | 53130 |
| 23 | 10626 |
| 24 | 1771 |
| 25 | 231 |
| 26 | 21 |
| 27 | 1 |
| 28 | 5379616 |
| 29 | 1107568 |
| 30 | 201376 |
| 31 | 31465 |
| 32 | 4060 |
| 33 | 406 |
| 34 | 28 |
| 35 | 1 |
| 36 | 145008513 |
| 37 | 26978328 |
| 38 | 4496388 |
| 39 | 658008 |
| 40 | 82251 |
| 41 | 8436 |
| 42 | 666 |
| 43 | 36 |
| 44 | 1 |
| 45 | 4431613550 |
[1,1,1,6,3,1,56,21,6,1,715,220,55,10,1,11628,3060, 680,120,15,1,230230,53130,10626,1771,231,21,1, 5379616,1107568,201376,31465,4060,406,28,1, 145008513,26978328,4496388,658008,82251,8436,666, 36,1,4431613550] |