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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 5 |
| 6 | 5 |
| 7 | 7 |
| 8 | 7 |
| 9 | 5 |
| 10 | 5 |
| 11 | 11 |
| 12 | 11 |
| 13 | 91 |
| 14 | 91 |
| 15 | -9 |
| 16 | -9 |
| 17 | 1207 |
| 18 | 1207 |
| 19 | -10849 |
| 20 | -10849 |
| 21 | 65879 |
| 22 | 65879 |
| 23 | -783127 |
| 24 | -783127 |
| 25 | 61098739 |
| 26 | 61098739 |
| 27 | -2034290233 |
| 28 | -2034290233 |
| 29 | 72986324461 |
| 30 | 72986324461 |
[0,0,0,1,2,5,5,7,7,5,5,11,11,91,91,-9,-9,1207, 1207,-10849,-10849,65879,65879,-783127,-783127, 61098739,61098739,-2034290233,-2034290233, 72986324461,72986324461] |