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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 216 |
| 2 | -200232 |
| 3 | -85500576 |
| 4 | -11218984488 |
| 5 | -499862636784 |
| 6 | -11084671590048 |
| 7 | -152346382155072 |
| 8 | -1474691273530920 |
| 9 | -10921720940625672 |
| 10 | -65489246355989232 |
| 11 | -331011680696545248 |
| 12 | -1452954445366288032 |
| 13 | -5665058572086302256 |
| 14 | -19968589327695656256 |
[1,216,-200232,-85500576,-11218984488, -499862636784,-11084671590048,-152346382155072, -1474691273530920,-10921720940625672, -65489246355989232,-331011680696545248, -1452954445366288032,-5665058572086302256, -19968589327695656256] |