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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 288 |
| 3 | 0 |
| 4 | 14016 |
| 5 | 0 |
| 6 | 286048 |
| 7 | 24576 |
| 8 | 3441024 |
| 9 | 745472 |
| 10 | 28329888 |
| 11 | 8945664 |
| 12 | 173667392 |
| 13 | 65175552 |
| 14 | 843477984 |
| 15 | 343982080 |
| 16 | 3403653888 |
| 17 | 1444724736 |
| 18 | 11829909024 |
| 19 | 5112102912 |
| 20 | 36395000256 |
| 21 | 15823175680 |
| 22 | 101202780768 |
| 23 | 43979120640 |
| 24 | 258496529536 |
| 25 | 111876710400 |
[1,0,288,0,14016,0,286048,24576,3441024,745472, 28329888,8945664,173667392,65175552,843477984, 343982080,3403653888,1444724736,11829909024, 5112102912,36395000256,15823175680,101202780768, 43979120640,258496529536,111876710400] |