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| n | a(n) |
|---|---|
| 0 | -1 |
| 1 | 3 |
| 2 | 2 |
| 3 | -10 |
| 4 | -15 |
| 5 | -6 |
| 6 | 35 |
| 7 | 84 |
| 8 | 70 |
| 9 | 20 |
| 10 | -126 |
| 11 | -420 |
| 12 | -540 |
| 13 | -315 |
| 14 | -70 |
| 15 | 462 |
| 16 | 1980 |
| 17 | 3465 |
| 18 | 3080 |
| 19 | 1386 |
| 20 | 252 |
| 21 | -1716 |
| 22 | -9009 |
| 23 | -20020 |
| 24 | -24024 |
| 25 | -16380 |
| 26 | -6006 |
| 27 | -924 |
| 28 | 6435 |
| 29 | 40040 |
| 30 | 108108 |
| 31 | 163800 |
| 32 | 150150 |
| 33 | 83160 |
| 34 | 25740 |
| 35 | 3432 |
| 36 | -24310 |
| 37 | -175032 |
| 38 | -556920 |
| 39 | -1021020 |
| 40 | -1178100 |
| 41 | -875160 |
| 42 | -408408 |
| 43 | -109395 |
| 44 | -12870 |
[-1,3,2,-10,-15,-6,35,84,70,20,-126,-420,-540, -315,-70,462,1980,3465,3080,1386,252,-1716,-9009, -20020,-24024,-16380,-6006,-924,6435,40040,108108, 163800,150150,83160,25740,3432,-24310,-175032, -556920,-1021020,-1178100,-875160,-408408,-109395, -12870] |