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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | -2 |
| 4 | 1 |
| 5 | -4 |
| 6 | 4 |
| 7 | 1 |
| 8 | -7 |
| 9 | 15 |
| 10 | -10 |
| 11 | 1 |
| 12 | -11 |
| 13 | 42 |
| 14 | -65 |
| 15 | 34 |
| 16 | 1 |
| 17 | -16 |
| 18 | 96 |
| 19 | -267 |
| 20 | 339 |
| 21 | -154 |
| 22 | 1 |
| 23 | -22 |
| 24 | 191 |
| 25 | -831 |
| 26 | 1891 |
| 27 | -2103 |
| 28 | 874 |
| 29 | 1 |
| 30 | -29 |
| 31 | 344 |
| 32 | -2151 |
| 33 | 7600 |
| 34 | -15023 |
| 35 | 15171 |
| 36 | -5914 |
| 37 | 1 |
| 38 | -37 |
| 39 | 575 |
| 40 | -4880 |
| 41 | 24600 |
| 42 | -74884 |
| 43 | 133147 |
| 44 | -124755 |
| 45 | 46234 |
| 46 | 1 |
| 47 | -46 |
| 48 | 907 |
| 49 | -10025 |
| 50 | 68153 |
| 51 | -293925 |
| 52 | 798564 |
| 53 | -1305847 |
| 54 | 1151331 |
| 55 | -409114 |
| 56 | 1 |
| 57 | -56 |
[1,1,-2,1,-4,4,1,-7,15,-10,1,-11,42,-65,34,1,-16, 96,-267,339,-154,1,-22,191,-831,1891,-2103,874,1, -29,344,-2151,7600,-15023,15171,-5914,1,-37,575, -4880,24600,-74884,133147,-124755,46234,1,-46,907, -10025,68153,-293925,798564,-1305847,1151331, -409114,1,-56] |