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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | -6 |
| 3 | 1 |
| 4 | 77 |
| 5 | -120 |
| 6 | 60 |
| 7 | -20 |
| 8 | 3 |
| 9 | 669 |
| 10 | -1260 |
| 11 | 1050 |
| 12 | -700 |
| 13 | 315 |
| 14 | -84 |
| 15 | 10 |
| 16 | 4609 |
| 17 | -10080 |
| 18 | 11760 |
| 19 | -11760 |
| 20 | 8820 |
| 21 | -4704 |
| 22 | 1680 |
| 23 | -360 |
| 24 | 35 |
| 25 | 55991 |
| 26 | -13860 |
| 27 | 207900 |
| 28 | -277200 |
| 29 | 291060 |
| 30 | -232848 |
| 31 | 138600 |
| 32 | -59400 |
| 33 | 17325 |
| 34 | -3080 |
| 35 | 252 |
| 36 | 785633 |
| 37 | -2162160 |
| 38 | 3963960 |
| 39 | -6606600 |
| 40 | 8918910 |
[5,-6,1,77,-120,60,-20,3,669,-1260,1050,-700,315, -84,10,4609,-10080,11760,-11760,8820,-4704,1680, -360,35,55991,-13860,207900,-277200,291060, -232848,138600,-59400,17325,-3080,252,785633, -2162160,3963960,-6606600,8918910] |