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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 5 |
| 4 | 6 |
| 5 | 60 |
| 6 | 25 |
| 7 | 66 |
| 8 | 990 |
| 9 | 825 |
| 10 | 125 |
| 11 | 1056 |
| 12 | 21120 |
| 13 | 26400 |
| 14 | 8000 |
| 15 | 625 |
| 16 | 22176 |
| 17 | 554400 |
| 18 | 924000 |
| 19 | 420000 |
| 20 | 65625 |
| 21 | 3125 |
| 22 | 576576 |
| 23 | 17297280 |
| 24 | 36036000 |
| 25 | 21840000 |
| 26 | 5118750 |
| 27 | 487500 |
| 28 | 15625 |
| 29 | 17873856 |
| 30 | 625584960 |
| 31 | 1563962400 |
| 32 | 1184820000 |
| 33 | 370256250 |
| 34 | 52893750 |
| 35 | 3390625 |
| 36 | 78125 |
[1,1,5,6,60,25,66,990,825,125,1056,21120,26400, 8000,625,22176,554400,924000,420000,65625,3125, 576576,17297280,36036000,21840000,5118750,487500, 15625,17873856,625584960,1563962400,1184820000, 370256250,52893750,3390625,78125] |