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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | -1 |
| 3 | 7 |
| 4 | -5 |
| 5 | 3 |
| 6 | 87 |
| 7 | -35 |
| 8 | 63 |
| 9 | -5 |
| 10 | 2047 |
| 11 | -105 |
| 12 | 819 |
| 13 | -45 |
| 14 | 35 |
| 15 | 78655 |
| 16 | -8085 |
| 17 | 15939 |
| 18 | -7425 |
| 19 | 1925 |
| 20 | -63 |
| 21 | 4439935 |
| 22 | -57057 |
| 23 | 225225 |
| 24 | -211497 |
| 25 | 115115 |
| 26 | -2457 |
| 27 | 231 |
| 28 | 344674687 |
| 29 | -4429425 |
| 30 | 17486469 |
| 31 | -8217495 |
| 32 | 9003995 |
| 33 | -200655 |
| 34 | 24255 |
| 35 | -429 |
[0,1,-1,7,-5,3,87,-35,63,-5,2047,-105,819,-45,35, 78655,-8085,15939,-7425,1925,-63,4439935,-57057, 225225,-211497,115115,-2457,231,344674687, -4429425,17486469,-8217495,9003995,-200655,24255, -429] |