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| n | a(n) |
|---|---|
| -1 | 0 |
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | -3 |
| 4 | 0 |
| 5 | 2 |
| 6 | 0 |
| 7 | 0 |
| 8 | 9 |
| 9 | -2 |
| 10 | 0 |
| 11 | 0 |
| 12 | -18 |
| 13 | 0 |
| 14 | 0 |
| 15 | -27 |
| 16 | 0 |
| 17 | 0 |
| 18 | 36 |
| 19 | 0 |
| 20 | 0 |
| 21 | 108 |
| 22 | 0 |
| 23 | 0 |
| 24 | 81 |
| 25 | 0 |
| 26 | 152 |
| 27 | 0 |
| 28 | 0 |
| 29 | -360 |
| 30 | 0 |
| 31 | 0 |
| 32 | -540 |
| 33 | 0 |
| 34 | 0 |
| 35 | -243 |
| 36 | -152 |
| 37 | 0 |
| 38 | 0 |
| 39 | -16440 |
| 40 | 0 |
| 41 | 0 |
| 42 | 2700 |
| 43 | 0 |
| 44 | 0 |
| 45 | 2430 |
| 46 | 0 |
| 47 | 0 |
| 48 | 729 |
| 49 | 0 |
| 50 | 0 |
| 51 | 24240 |
| 52 | 0 |
| 53 | 0 |
| 54 | 1311840 |
| 55 | 0 |
| 56 | 0 |
| 57 | -17010 |
| 58 | 0 |
| 59 | 0 |
| 60 | -10206 |
| 61 | 0 |
| 62 | 0 |
| 63 | -2187 |
| 64 | 0 |
| 65 | 6848 |
| 66 | 0 |
| 67 | 0 |
| 68 | -2974800 |
[0,1,0,0,-3,0,2,0,0,9,-2,0,0,-18,0,0,-27,0,0,36,0, 0,108,0,0,81,0,152,0,0,-360,0,0,-540,0,0,-243, -152,0,0,-16440,0,0,2700,0,0,2430,0,0,729,0,0, 24240,0,0,1311840,0,0,-17010,0,0,-10206,0,0,-2187, 0,6848,0,0,-2974800] |