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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | -148 |
| 5 | -3719 |
| 6 | -20098 |
| 7 | 5055961 |
| 8 | 403644152 |
| 9 | 7831409041 |
| 10 | -2707151879398 |
| 11 | -472143935754479 |
| 12 | -22085804322342748 |
| 13 | 9362259685093715401 |
| 14 | 2995219209329323622102 |
| 15 | 274269338931958691728681 |
| 16 | -132963342779629343323496848 |
| 17 | -70698673853383423350187244639 |
[1,2,1,-148,-3719,-20098,5055961,403644152, 7831409041,-2707151879398,-472143935754479, -22085804322342748,9362259685093715401, 2995219209329323622102,274269338931958691728681, -132963342779629343323496848, -70698673853383423350187244639] |