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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 1 |
| 2 | -7 |
| 3 | -26 |
| 4 | 449 |
| 5 | 3001 |
| 6 | -81863 |
| 7 | -790271 |
| 8 | 29441537 |
| 9 | 371653678 |
| 10 | -17549650999 |
| 11 | -273657699479 |
| 12 | 15647990550337 |
| 13 | 290477695697281 |
| 14 | -19502273553366631 |
| 15 | -419946226750915874 |
| 16 | 32375641678132277249 |
| 17 | 793304922112119056161 |
| 18 | -69057016330377072921047 |
| 19 | -1897210272812469982747199 |
[2,1,-7,-26,449,3001,-81863,-790271,29441537, 371653678,-17549650999,-273657699479, 15647990550337,290477695697281,-19502273553366631, -419946226750915874,32375641678132277249, 793304922112119056161,-69057016330377072921047, -1897210272812469982747199] |