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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 47160 |
| 3 | 1654560 |
| 4 | 3023640 |
| 5 | 66712680 |
| 6 | 42409440 |
| 7 | 77899320 |
| 8 | 37616880 |
| 9 | 794577600 |
| 10 | 378764280 |
| 11 | 198832320 |
| 12 | 388596960 |
| 13 | 186471480 |
| 14 | 656793720 |
| 15 | 286674960 |
| 16 | 233086920 |
| 17 | 116392080 |
| 18 | 5150502360 |
| 19 | 2322426960 |
| 20 | 1115748360 |
| 21 | 1730294280 |
| 22 | 894687600 |
| 23 | 909774720 |
| 24 | 480592200 |
| 25 | 2069616960 |
[0,47160,1654560,3023640,66712680,42409440, 77899320,37616880,794577600,378764280,198832320, 388596960,186471480,656793720,286674960,233086920, 116392080,5150502360,2322426960,1115748360, 1730294280,894687600,909774720,480592200, 2069616960] |