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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -7 |
| 2 | -15 |
| 3 | 1001 |
| 4 | 4065 |
| 5 | -514087 |
| 6 | -3125295 |
| 7 | 559451081 |
| 8 | 4534099905 |
| 9 | -1044682551367 |
| 10 | -10583199850575 |
| 11 | 2980654783566761 |
| 12 | 36234719616266145 |
| 13 | -12060793477105158247 |
| 14 | -171055019182265094255 |
| 15 | 65695455336100321500041 |
| 16 | 1064846988389856127270785 |
[1,-7,-15,1001,4065,-514087,-3125295,559451081, 4534099905,-1044682551367,-10583199850575, 2980654783566761,36234719616266145, -12060793477105158247,-171055019182265094255, 65695455336100321500041,1064846988389856127270785] |