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| n | a(n) |
|---|---|
| 2 | 36 |
| 3 | -144 |
| 4 | 864 |
| 5 | -6048 |
| 6 | 46080 |
| 7 | -370656 |
| 8 | 3096576 |
| 9 | -26604864 |
| 10 | 233570304 |
| 11 | -2086063200 |
| 12 | 18893242368 |
| 13 | -173111152320 |
| 14 | 1601754365952 |
| 15 | -14945262816960 |
| 16 | 140461536706560 |
| 17 | -1328495714939520 |
| 18 | 12635295568625664 |
| 19 | -120770748612067680 |
| 20 | 1159474181591531520 |
| 21 | -11176086736640548800 |
| 22 | 108114032779214192640 |
| 23 | -1049288769526156568640 |
| 24 | 10214201953998140866560 |
| 25 | -99701511082612622322048 |
[36,-144,864,-6048,46080,-370656,3096576, -26604864,233570304,-2086063200,18893242368, -173111152320,1601754365952,-14945262816960, 140461536706560,-1328495714939520, 12635295568625664,-120770748612067680, 1159474181591531520,-11176086736640548800, 108114032779214192640,-1049288769526156568640, 10214201953998140866560,-99701511082612622322048] |