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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 120 |
| 5 | 240 |
| 6 | 3276 |
| 7 | 2520 |
| 8 | 10920 |
| 9 | 21840 |
| 10 | 32760 |
| 11 | 65520 |
| 12 | 622440 |
| 13 | 600600 |
| 14 | 900900 |
| 15 | 3636360 |
| 16 | 1801800 |
| 17 | 3603600 |
| 18 | 4455360 |
| 19 | 22407840 |
| 20 | 8910720 |
| 21 | 17821440 |
| 22 | 51351300 |
| 23 | 46060560 |
| 24 | 69090840 |
| 25 | 92121120 |
| 26 | 126977760 |
| 27 | 138181680 |
| 28 | 380933280 |
| 29 | 245044800 |
| 30 | 414545040 |
| 31 | 490089600 |
| 32 | 507911040 |
[1,2,12,120,240,3276,2520,10920,21840,32760,65520, 622440,600600,900900,3636360,1801800,3603600, 4455360,22407840,8910720,17821440,51351300, 46060560,69090840,92121120,126977760,138181680, 380933280,245044800,414545040,490089600,507911040] |