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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -6 |
| 2 | -25 |
| 3 | 1089 |
| 4 | 17525 |
| 5 | -1474203 |
| 6 | -35556325 |
| 7 | 4235748969 |
| 8 | 136208340425 |
| 9 | -20885905425843 |
| 10 | -839526455172625 |
| 11 | 157357246950956049 |
| 12 | 7590123026812819325 |
| 13 | -1681348001671764196683 |
| 14 | -94616404376637522096925 |
| 15 | 24183757606272904354774329 |
| 16 | 1555337176890457463545214225 |
[1,-6,-25,1089,17525,-1474203,-35556325, 4235748969,136208340425,-20885905425843, -839526455172625,157357246950956049, 7590123026812819325,-1681348001671764196683, -94616404376637522096925, 24183757606272904354774329, 1555337176890457463545214225] |