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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -6 |
| 3 | -307 |
| 4 | 104742 |
| 5 | 251699498 |
| 6 | -4229811552588 |
| 7 | -497641562809372379 |
| 8 | 409828230340907182689774 |
| 9 | 2362579011761419853955236859806 |
| 10 | -95338580221916838164306067991935130836 |
[1,1,-6,-307,104742,251699498,-4229811552588, -497641562809372379,409828230340907182689774, 2362579011761419853955236859806, -95338580221916838164306067991935130836] |