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| n | a(n) |
|---|---|
| 0 | -1 |
| 1 | -2 |
| 2 | -2 |
| 3 | 1 |
| 4 | 4 |
| 5 | -17 |
| 6 | -62 |
| 7 | 271 |
| 8 | 1384 |
| 9 | -7937 |
| 10 | -50522 |
| 11 | 353791 |
| 12 | 2702764 |
| 13 | -22368257 |
| 14 | -199360982 |
| 15 | 1903757311 |
| 16 | 19391512144 |
| 17 | -209865342977 |
| 18 | -2404879675442 |
| 19 | 29088885112831 |
| 20 | 370371188237524 |
| 21 | -4951498053124097 |
| 22 | -69348874393137902 |
| 23 | 1015423886506852351 |
| 24 | 15514534163557086904 |
[-1,-2,-2,1,4,-17,-62,271,1384,-7937,-50522, 353791,2702764,-22368257,-199360982,1903757311, 19391512144,-209865342977,-2404879675442, 29088885112831,370371188237524,-4951498053124097, -69348874393137902,1015423886506852351, 15514534163557086904] |