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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 13 |
| 3 | -341 |
| 4 | 18649 |
| 5 | -177761 |
| 6 | 1087433 |
| 7 | -4043494549 |
| 8 | 1674761567 |
| 9 | -284891766539657 |
| 10 | 106410874319325461 |
| 11 | -48402125366670946877 |
| 12 | 26344930021064765797249 |
| 13 | -27048608191991004321089 |
| 14 | 6237195766537863970288933 |
| 15 | -16102066950215127630856787159 |
| 16 | 2258820895862623437612519923989 |
[1,-1,13,-341,18649,-177761,1087433,-4043494549, 1674761567,-284891766539657,106410874319325461, -48402125366670946877,26344930021064765797249, -27048608191991004321089, 6237195766537863970288933, -16102066950215127630856787159, 2258820895862623437612519923989] |