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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 28 |
| 3 | 456 |
| 4 | 496 |
| 5 | 6552 |
| 6 | 8128 |
| 7 | 30240 |
| 8 | 31452 |
| 9 | 32760 |
| 10 | 429240 |
| 11 | 2178540 |
| 12 | 7505976 |
| 13 | 23569920 |
| 14 | 33550336 |
| 15 | 45532800 |
| 16 | 142990848 |
| 17 | 1379454720 |
[6,28,456,496,6552,8128,30240,31452,32760,429240, 2178540,7505976,23569920,33550336,45532800, 142990848,1379454720] |