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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -9 |
| 2 | -175 |
| 3 | 6183 |
| 4 | 209825 |
| 5 | -12938409 |
| 6 | -649941775 |
| 7 | 56426750343 |
| 8 | 3774162697025 |
| 9 | -421555664358729 |
| 10 | -35240023415083375 |
| 11 | 4811182874732508903 |
| 12 | 482622211682628032225 |
| 13 | -77871245245152983900649 |
| 14 | -9113360881681069177600975 |
| 15 | 1696667241973068492022945863 |
[1,-9,-175,6183,209825,-12938409,-649941775, 56426750343,3774162697025,-421555664358729, -35240023415083375,4811182874732508903, 482622211682628032225,-77871245245152983900649, -9113360881681069177600975, 1696667241973068492022945863] |