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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | -1015 |
| 3 | -59022 |
| 4 | -1048495 |
| 5 | -9765382 |
| 6 | -60465447 |
| 7 | -282473062 |
| 8 | -1073735263 |
| 9 | -3486764718 |
| 10 | -9999940951 |
| 11 | -25937247454 |
| 12 | -61916832783 |
| 13 | -137856897526 |
| 14 | -289249872007 |
| 15 | -576636041718 |
| 16 | -1099468581055 |
| 17 | -2015864760286 |
[1,2,-1015,-59022,-1048495,-9765382,-60465447, -282473062,-1073735263,-3486764718,-9999940951, -25937247454,-61916832783,-137856897526, -289249872007,-576636041718,-1099468581055, -2015864760286] |