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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 5 |
| 4 | -47 |
| 5 | 719 |
| 6 | -16299 |
| 7 | 513253 |
| 8 | -21430513 |
| 9 | 1145710573 |
| 10 | -76317960163 |
| 11 | 6197399680779 |
| 12 | -602640663660199 |
| 13 | 69134669061681469 |
| 14 | -9239224408001877873 |
| 15 | 1422887941494773642817 |
| 16 | -250160794466824215921275 |
| 17 | 49797413478450579190546203 |
| 18 | -11142367835115998962269070519 |
| 19 | 2784355004138005473128335461749 |
[1,-1,5,-47,719,-16299,513253,-21430513, 1145710573,-76317960163,6197399680779, -602640663660199,69134669061681469, -9239224408001877873,1422887941494773642817, -250160794466824215921275, 49797413478450579190546203, -11142367835115998962269070519, 2784355004138005473128335461749] |