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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 29 |
| 6 | 35 |
| 7 | 340 |
| 8 | 26579 |
| 9 | 390480 |
| 10 | 9514434 |
| 11 | 145963193 |
| 12 | 5474045270 |
| 13 | 87251356528 |
[1,0,0,0,0,29,35,340,26579,390480,9514434, 145963193,5474045270,87251356528] |