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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | -2 |
| 4 | 4 |
| 5 | -6 |
| 6 | 5 |
| 7 | -12 |
| 8 | 3 |
| 9 | 6 |
| 10 | -20 |
| 11 | 12 |
| 12 | 7 |
| 13 | -30 |
| 14 | 30 |
| 15 | -4 |
| 16 | 8 |
| 17 | -42 |
| 18 | 60 |
| 19 | -20 |
| 20 | 9 |
| 21 | -56 |
| 22 | 105 |
| 23 | -60 |
| 24 | 5 |
| 25 | 10 |
| 26 | -72 |
| 27 | 168 |
| 28 | -140 |
| 29 | 30 |
| 30 | 11 |
| 31 | -90 |
| 32 | 252 |
| 33 | -280 |
| 34 | 105 |
| 35 | -6 |
| 36 | 12 |
| 37 | -110 |
| 38 | 360 |
| 39 | -504 |
| 40 | 280 |
| 41 | -42 |
| 42 | 13 |
| 43 | -132 |
| 44 | 495 |
| 45 | -840 |
| 46 | 630 |
| 47 | -168 |
| 48 | 7 |
| 49 | 14 |
| 50 | -156 |
| 51 | 660 |
| 52 | -1320 |
| 53 | 1260 |
| 54 | -504 |
| 55 | 56 |
| 56 | 15 |
| 57 | -182 |
| 58 | 858 |
| 59 | -1980 |
| 60 | 2310 |
| 61 | -1260 |
| 62 | 252 |
| 63 | -8 |
| 64 | 16 |
| 65 | -210 |
| 66 | 1092 |
[1,2,3,-2,4,-6,5,-12,3,6,-20,12,7,-30,30,-4,8,-42, 60,-20,9,-56,105,-60,5,10,-72,168,-140,30,11,-90, 252,-280,105,-6,12,-110,360,-504,280,-42,13,-132, 495,-840,630,-168,7,14,-156,660,-1320,1260,-504, 56,15,-182,858,-1980,2310,-1260,252,-8,16,-210, 1092] |