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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 2 |
| 3 | 2 |
| 4 | 0 |
| 5 | -2 |
| 6 | -4 |
| 7 | -2 |
| 8 | -6 |
| 9 | -2 |
| 10 | 4 |
| 11 | 50 |
| 12 | 78 |
| 13 | 34 |
| 14 | -248 |
| 15 | -146 |
| 16 | 248 |
| 17 | 1478 |
| 18 | 992 |
| 19 | -2570 |
| 20 | -13918 |
| 21 | -19026 |
| 22 | -12744 |
| 23 | 68034 |
| 24 | 193088 |
| 25 | 380810 |
| 26 | 86880 |
| 27 | -1362006 |
| 28 | -5050422 |
| 29 | -6966190 |
| 30 | 1464256 |
| 31 | 39349110 |
| 32 | 99348446 |
| 33 | 130130462 |
| 34 | -62116516 |
| 35 | -664338662 |
| 36 | -1811216390 |
| 37 | -2530859462 |
| 38 | -458383728 |
| 39 | 9647822334 |
| 40 | 29564081352 |
| 41 | 51363216966 |
| 42 | 35437251200 |
| 43 | -72752696138 |
| 44 | -343482383882 |
| 45 | -735851485042 |
| 46 | -1167503794928 |
| 47 | -1270647820502 |
| 48 | -634163168566 |
| 49 | 3532238523874 |
| 50 | 18635012627076 |
[1,2,2,2,0,-2,-4,-2,-6,-2,4,50,78,34,-248,-146, 248,1478,992,-2570,-13918,-19026,-12744,68034, 193088,380810,86880,-1362006,-5050422,-6966190, 1464256,39349110,99348446,130130462,-62116516, -664338662,-1811216390,-2530859462,-458383728, 9647822334,29564081352,51363216966,35437251200, -72752696138,-343482383882,-735851485042, -1167503794928,-1270647820502,-634163168566, 3532238523874,18635012627076] |