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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 6 |
| 6 | 2 |
| 7 | 150 |
| 8 | 19 |
| 9 | 16 |
| 10 | 12 |
| 11 | 1536160080 |
| 12 | 8 |
| 13 | 9918821194590 |
| 14 | 300 |
| 15 | 188 |
| 16 | 65 |
| 17 | 341976204789992332560 |
| 18 | 157 |
| 19 | 2166703103992332274919550 |
| 20 | 24 |
| 21 | 450 |
| 22 | 3072320160 |
[1,2,5,6,2,150,19,16,12,1536160080,8, 9918821194590,300,188,65,341976204789992332560, 157,2166703103992332274919550,24,450,3072320160] |