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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -76 |
| 2 | -702 |
| 3 | -5224 |
| 4 | -23425 |
| 5 | -98172 |
| 6 | -336450 |
| 7 | -1094152 |
| 8 | -3188349 |
| 9 | -8913752 |
| 10 | -23247294 |
| 11 | -58610304 |
| 12 | -140786308 |
| 13 | -328793172 |
| 14 | -740736900 |
| 15 | -1629664840 |
| 16 | -3486187003 |
| 17 | -7307990208 |
| 18 | -14976155896 |
| 19 | -30157221352 |
| 20 | -59594117256 |
| 21 | -115975615160 |
| 22 | -222119374922 |
| 23 | -419704427016 |
[1,-76,-702,-5224,-23425,-98172,-336450,-1094152, -3188349,-8913752,-23247294,-58610304,-140786308, -328793172,-740736900,-1629664840,-3486187003, -7307990208,-14976155896,-30157221352, -59594117256,-115975615160,-222119374922, -419704427016] |