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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -48 |
| 2 | 1728 |
| 3 | -79872 |
| 4 | 4058112 |
| 5 | -216956928 |
| 6 | 11977752576 |
| 7 | -676117610496 |
| 8 | 38792847949824 |
| 9 | -2253773963526144 |
| 10 | 132241430641901568 |
| 11 | -7821943674035503104 |
| 12 | 465750331610495975424 |
| 13 | -27888626411947306254336 |
| 14 | 1677958399935741979262976 |
| 15 | -101375476324084742212288512 |
| 16 | 6146869366762959307806867456 |
[1,-48,1728,-79872,4058112,-216956928,11977752576, -676117610496,38792847949824,-2253773963526144, 132241430641901568,-7821943674035503104, 465750331610495975424,-27888626411947306254336, 1677958399935741979262976, -101375476324084742212288512, 6146869366762959307806867456] |