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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 1 |
| 6 | -1 |
| 7 | 1 |
| 8 | 1 |
| 9 | -139 |
| 10 | 1 |
| 11 | -571 |
| 12 | -281 |
| 13 | 163879 |
| 14 | -5221 |
| 15 | 5246819 |
| 16 | 5459 |
| 17 | -534703531 |
| 18 | 91207079 |
| 19 | -4483131259 |
| 20 | -2650986803 |
| 21 | 432261921612371 |
| 22 | -6171801683 |
| 23 | 6232523202521089 |
| 24 | 4283933145517 |
| 25 | -25834629665134204969 |
| 26 | 11963983648109 |
| 27 | -1579029138854919086429 |
| 28 | -208697624924077 |
| 29 | 746590869962651602203151 |
| 30 | -29320119130515566117 |
[0,0,1,2,1,1,-1,1,1,-139,1,-571,-281,163879,-5221, 5246819,5459,-534703531,91207079,-4483131259, -2650986803,432261921612371,-6171801683, 6232523202521089,4283933145517, -25834629665134204969,11963983648109, -1579029138854919086429,-208697624924077, 746590869962651602203151,-29320119130515566117] |