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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 240 |
| 2 | 2160 |
| 3 | 6720 |
| 4 | 17520 |
| 5 | 30240 |
| 6 | 60480 |
| 7 | 82560 |
| 8 | 140400 |
| 9 | 181680 |
| 10 | 272160 |
| 11 | 319680 |
| 12 | 490560 |
| 13 | 527520 |
| 14 | 743040 |
| 15 | 846720 |
| 16 | 1123440 |
| 17 | 1179360 |
| 18 | 1635120 |
| 19 | 1646400 |
| 20 | 2207520 |
| 21 | 2311680 |
| 22 | 2877120 |
| 23 | 2920320 |
| 24 | 3931200 |
| 25 | 3780240 |
| 26 | 4747680 |
| 27 | 4905600 |
| 28 | 6026880 |
[1,240,2160,6720,17520,30240,60480,82560,140400, 181680,272160,319680,490560,527520,743040,846720, 1123440,1179360,1635120,1646400,2207520,2311680, 2877120,2920320,3931200,3780240,4747680,4905600, 6026880] |