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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | -1 |
| 4 | -24 |
| 5 | -123 |
| 6 | 2 |
| 7 | 5987 |
| 8 | 54544 |
| 9 | 66441 |
| 10 | -4948798 |
| 11 | -71261177 |
| 12 | -226393992 |
| 13 | 9534896269 |
| 14 | 201964922434 |
| 15 | 1166083278955 |
| 16 | -34861258001632 |
| 17 | -1052810665903343 |
| 18 | -9456771887276926 |
| 19 | 211545075206125327 |
[0,1,2,-1,-24,-123,2,5987,54544,66441,-4948798, -71261177,-226393992,9534896269,201964922434, 1166083278955,-34861258001632,-1052810665903343, -9456771887276926,211545075206125327] |