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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | -1 |
| 4 | 0 |
| 5 | -16 |
| 6 | -5 |
| 7 | 13 |
| 8 | -1512 |
| 9 | 12336 |
| 10 | -98177 |
| 11 | 444773 |
| 12 | 1249160 |
| 13 | -75244508 |
| 14 | 1296229779 |
| 15 | -15956614403 |
| 16 | 130892534160 |
| 17 | 59122803744 |
| 18 | -31478991643617 |
| 19 | 837166840532589 |
| 20 | -14900078660739984 |
| 21 | 181343532181629332 |
| 22 | -480411914937891389 |
| 23 | -54306065912649098539 |
| 24 | 2080183542455901881320 |
[0,1,1,-1,0,-16,-5,13,-1512,12336,-98177,444773, 1249160,-75244508,1296229779,-15956614403, 130892534160,59122803744,-31478991643617, 837166840532589,-14900078660739984, 181343532181629332,-480411914937891389, -54306065912649098539,2080183542455901881320] |