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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 16 |
| 5 | 28 |
| 6 | 1 |
| 7 | 272 |
| 8 | 1032 |
| 9 | 270 |
| 10 | 1 |
| 11 | 7936 |
| 12 | 52736 |
| 13 | 36096 |
| 14 | 2456 |
| 15 | 1 |
| 16 | 353792 |
| 17 | 3646208 |
| 18 | 4766048 |
| 19 | 1035088 |
| 20 | 22138 |
| 21 | 1 |
| 22 | 22368256 |
| 23 | 330545664 |
| 24 | 704357760 |
| 25 | 319830400 |
| 26 | 27426960 |
| 27 | 199284 |
| 28 | 1 |
| 29 | 1903757312 |
| 30 | 38188155904 |
| 31 | 120536980224 |
| 32 | 93989648000 |
[1,2,1,16,28,1,272,1032,270,1,7936,52736,36096, 2456,1,353792,3646208,4766048,1035088,22138,1, 22368256,330545664,704357760,319830400,27426960, 199284,1,1903757312,38188155904,120536980224, 93989648000] |