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| n | a(n) |
|---|---|
| 1 | 240 |
| 2 | 39784 |
| 3 | 3200604 |
| 4 | 240637408 |
| 5 | 16644595392 |
| 6 | 1109236460528 |
| 7 | 71730749075588 |
| 8 | 4544255355000752 |
| 9 | 283289815771686692 |
| 10 | 17440137572474977008 |
| 11 | 1062799029214265825864 |
| 12 | 64226079502012687928352 |
[240,39784,3200604,240637408,16644595392, 1109236460528,71730749075588,4544255355000752, 283289815771686692,17440137572474977008, 1062799029214265825864,64226079502012687928352] |