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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 2 |
| 3 | -2 |
| 4 | -12 |
| 5 | -22 |
| 6 | -10 |
| 7 | 56 |
| 8 | 174 |
| 9 | 222 |
| 10 | -92 |
| 11 | -1038 |
| 12 | -2210 |
| 13 | -1624 |
| 14 | 4102 |
| 15 | 16006 |
| 16 | 24260 |
| 17 | 954 |
| 18 | -86426 |
| 19 | -215528 |
| 20 | -212546 |
| 21 | 267150 |
| 22 | 1433124 |
| 23 | 2538530 |
| 24 | 984270 |
| 25 | -6873592 |
| 26 | -20465066 |
| 27 | -25058698 |
| 28 | 13402052 |
| 29 | 124569514 |
| 30 | 256580886 |
| 31 | 173699192 |
| 32 | -512667826 |
| 33 | -1893337666 |
[2,2,-2,-12,-22,-10,56,174,222,-92,-1038,-2210, -1624,4102,16006,24260,954,-86426,-215528,-212546, 267150,1433124,2538530,984270,-6873592,-20465066, -25058698,13402052,124569514,256580886,173699192, -512667826,-1893337666] |