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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 36 |
| 5 | 480 |
| 6 | 36 |
| 7 | 10 |
| 8 | 16 |
| 9 | 84 |
| 10 | 2704 |
| 11 | 46736 |
| 12 | 324 |
| 13 | 80 |
| 14 | 4 |
| 15 | 19776 |
| 16 | 144 |
[0,0,0,36,480,36,10,16,84,2704,46736,324,80,4, 19776,144] |