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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -7 |
| 2 | 1 |
| 3 | 1001 |
| 4 | -15359 |
| 5 | 30233 |
| 6 | 3126529 |
| 7 | -61392247 |
| 8 | 259448833 |
| 9 | 11970181433 |
| 10 | -287815672319 |
| 11 | 1854020654633 |
| 12 | 48800262650881 |
| 13 | -1443188813338279 |
| 14 | 12410505050039041 |
| 15 | 198977188596692681 |
| 16 | -7472188661349285887 |
| 17 | 80331498114096555641 |
[1,-7,1,1001,-15359,30233,3126529,-61392247, 259448833,11970181433,-287815672319,1854020654633, 48800262650881,-1443188813338279, 12410505050039041,198977188596692681, -7472188661349285887,80331498114096555641] |