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| n | a(n) |
|---|---|
| 7 | 15 |
| 8 | -47 |
| 9 | 197 |
| 10 | -1029 |
| 11 | 6439 |
| 12 | -46927 |
| 13 | 390249 |
| 14 | -3645737 |
| 15 | 37792331 |
| 16 | -430400211 |
| 17 | 5341017373 |
| 18 | -71724018781 |
| 19 | 1036207207363983 |
| 20 | -16024176975479 |
| 21 | 264083895859409 |
| 22 | -4620276321889617 |
| 23 | 85520275455047059 |
| 24 | -1669635965205539227 |
| 25 | 34287733935303686661 |
[15,-47,197,-1029,6439,-46927,390249,-3645737, 37792331,-430400211,5341017373,-71724018781, 1036207207363983,-16024176975479,264083895859409, -4620276321889617,85520275455047059, -1669635965205539227,34287733935303686661] |