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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 37200 |
| 3 | 86800 |
| 4 | 170688 |
| 5 | 260400 |
| 6 | 334800 |
| 7 | 2269200 |
| 8 | 2343600 |
| 9 | 2864400 |
| 10 | 3385200 |
| 11 | 4947600 |
| 12 | 5291328 |
| 13 | 5294800 |
| 14 | 10155600 |
| 15 | 11048400 |
| 16 | 15884400 |
| 17 | 18897600 |
| 18 | 20422800 |
| 19 | 30466800 |
| 20 | 33070800 |
| 21 | 44094400 |
| 22 | 44528400 |
| 23 | 61618368 |
| 24 | 77338800 |
| 25 | 91660800 |
[1,37200,86800,170688,260400,334800,2269200, 2343600,2864400,3385200,4947600,5291328,5294800, 10155600,11048400,15884400,18897600,20422800, 30466800,33070800,44094400,44528400,61618368, 77338800,91660800] |