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| n | a(n) |
|---|---|
| 1 | -1 |
| 2 | 1 |
| 3 | -2 |
| 4 | -1 |
| 5 | 8 |
| 6 | -6 |
| 7 | 1 |
| 8 | -24 |
| 9 | 57 |
| 10 | -24 |
| 11 | -1 |
| 12 | 64 |
| 13 | -361 |
| 14 | 424 |
| 15 | -120 |
| 16 | 1 |
| 17 | -160 |
| 18 | 1890 |
| 19 | -4720 |
| 20 | 3415 |
| 21 | -720 |
| 22 | -1 |
| 23 | 384 |
| 24 | -8828 |
| 25 | 41642 |
| 26 | -59543 |
| 27 | 30036 |
| 28 | -5040 |
| 29 | 1 |
| 30 | -896 |
| 31 | 38199 |
| 32 | -317072 |
| 33 | 803383 |
| 34 | -757120 |
| 35 | 288449 |
| 36 | -40320 |
| 37 | -1 |
| 38 | 2048 |
| 39 | -156483 |
| 40 | 2177996 |
| 41 | -9156523 |
| 42 | 14586084 |
| 43 | -9908113 |
| 44 | 3015440 |
| 45 | -362880 |
| 46 | 1 |
| 47 | -4608 |
| 48 | 615288 |
[-1,1,-2,-1,8,-6,1,-24,57,-24,-1,64,-361,424,-120, 1,-160,1890,-4720,3415,-720,-1,384,-8828,41642, -59543,30036,-5040,1,-896,38199,-317072,803383, -757120,288449,-40320,-1,2048,-156483,2177996, -9156523,14586084,-9908113,3015440,-362880,1, -4608,615288] |