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| n | a(n) |
|---|---|
| 3 | 288 |
| 4 | 1744 |
| 5 | 7200 |
| 6 | 21744 |
| 7 | 56448 |
| 8 | 126016 |
| 9 | 259200 |
| 10 | 487600 |
| 11 | 871200 |
| 12 | 1467216 |
| 13 | 2384928 |
| 14 | 3716944 |
| 15 | 5644800 |
| 16 | 8306944 |
| 17 | 11985408 |
| 18 | 16875216 |
| 19 | 23392800 |
| 20 | 31800400 |
| 21 | 42688800 |
| 22 | 56397616 |
| 23 | 73738368 |
| 24 | 95137344 |
| 25 | 121680000 |
| 26 | 153887344 |
| 27 | 193179168 |
| 28 | 240177616 |
| 29 | 296704800 |
| 30 | 363488400 |
[288,1744,7200,21744,56448,126016,259200,487600, 871200,1467216,2384928,3716944,5644800,8306944, 11985408,16875216,23392800,31800400,42688800, 56397616,73738368,95137344,121680000,153887344, 193179168,240177616,296704800,363488400] |