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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -10 |
| 3 | 221 |
| 4 | -6082 |
| 5 | 187386 |
| 6 | -6184848 |
| 7 | 213843477 |
| 8 | -7645509706 |
| 9 | 280351640702 |
| 10 | -10485617230780 |
| 11 | 398467433529298 |
| 12 | -15341431926699284 |
| 13 | 597149747213056324 |
| 14 | -23459916801814723548 |
| 15 | 929028306450848244741 |
| 16 | -37045540042729366580442 |
[1,1,-10,221,-6082,187386,-6184848,213843477, -7645509706,280351640702,-10485617230780, 398467433529298,-15341431926699284, 597149747213056324,-23459916801814723548, 929028306450848244741,-37045540042729366580442] |