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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 0 |
| 3 | -1 |
| 4 | 0 |
| 5 | -7 |
| 6 | 0 |
| 7 | -23 |
| 8 | 0 |
| 9 | -5947 |
| 10 | 0 |
| 11 | -140759 |
| 12 | 0 |
| 13 | -8265391 |
| 14 | 0 |
| 15 | 133286519 |
| 16 | 0 |
| 17 | 1088222737541 |
| 18 | 0 |
| 19 | 4970981405216383 |
| 20 | 0 |
| 21 | 7294918534710727 |
| 22 | 0 |
| 23 | -32299178524632916333 |
| 24 | 0 |
| 25 | -944164720798082858723567 |
| 26 | 0 |
| 27 | 2252653730296347607326319 |
| 28 | 0 |
| 29 | 1968938229271096381309083587 |
[0,1,0,-1,0,-7,0,-23,0,-5947,0,-140759,0,-8265391, 0,133286519,0,1088222737541,0,4970981405216383,0, 7294918534710727,0,-32299178524632916333,0, -944164720798082858723567,0, 2252653730296347607326319,0, 1968938229271096381309083587] |