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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 3326400 |
| 5 | 4989600 |
| 6 | 6652800 |
| 7 | 9979200 |
| 8 | 11793600 |
| 9 | 19958400 |
| 10 | 21621600 |
| 11 | 23284800 |
| 12 | 23587200 |
| 13 | 25945920 |
| 14 | 29937600 |
| 15 | 33264000 |
| 16 | 34927200 |
| 17 | 35380800 |
| 18 | 39916800 |
| 19 | 43243200 |
| 20 | 46569600 |
| 21 | 47174400 |
| 22 | 49896000 |
| 23 | 51891840 |
| 24 | 58968000 |
| 25 | 59875200 |
| 26 | 64864800 |
| 27 | 66528000 |
| 28 | 69854400 |
| 29 | 70761600 |
| 30 | 76204800 |
| 31 | 77837760 |
| 32 | 79833600 |
[1,2,6,3326400,4989600,6652800,9979200,11793600, 19958400,21621600,23284800,23587200,25945920, 29937600,33264000,34927200,35380800,39916800, 43243200,46569600,47174400,49896000,51891840, 58968000,59875200,64864800,66528000,69854400, 70761600,76204800,77837760,79833600] |