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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | -1 |
| 2 | 1 |
| 3 | -1 |
| 4 | 0 |
| 5 | 2 |
| 6 | 0 |
| 7 | 1 |
| 8 | -2 |
| 9 | 2 |
| 10 | 0 |
| 11 | -5 |
| 12 | 0 |
| 13 | 0 |
| 14 | 1 |
| 15 | -3 |
| 16 | 5 |
| 17 | -5 |
| 18 | 0 |
| 19 | 14 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 1 |
| 24 | -4 |
| 25 | 9 |
| 26 | -14 |
| 27 | 14 |
| 28 | 0 |
| 29 | -42 |
| 30 | 0 |
| 31 | 0 |
| 32 | 0 |
| 33 | 0 |
| 34 | 1 |
| 35 | -5 |
| 36 | 14 |
| 37 | -28 |
| 38 | 42 |
| 39 | -42 |
| 40 | 0 |
| 41 | 132 |
| 42 | 0 |
| 43 | 0 |
| 44 | 0 |
| 45 | 0 |
| 46 | 0 |
| 47 | 1 |
| 48 | -6 |
| 49 | 20 |
| 50 | -48 |
| 51 | 90 |
| 52 | -132 |
| 53 | 132 |
| 54 | 0 |
| 55 | -429 |
| 56 | 0 |
| 57 | 0 |
| 58 | 0 |
| 59 | 0 |
| 60 | 0 |
| 61 | 0 |
| 62 | 1 |
| 63 | -7 |
| 64 | 27 |
| 65 | -75 |
| 66 | 165 |
| 67 | -297 |
| 68 | 429 |
| 69 | -429 |
| 70 | 0 |
| 71 | 1430 |
[0,-1,1,-1,0,2,0,1,-2,2,0,-5,0,0,1,-3,5,-5,0,14,0, 0,0,1,-4,9,-14,14,0,-42,0,0,0,0,1,-5,14,-28,42, -42,0,132,0,0,0,0,0,1,-6,20,-48,90,-132,132,0, -429,0,0,0,0,0,0,1,-7,27,-75,165,-297,429,-429,0, 1430] |