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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 6 |
| 9 | 0 |
| 10 | -6 |
| 11 | 0 |
| 12 | 12 |
| 13 | 0 |
| 14 | -6 |
| 15 | 0 |
| 16 | 18 |
| 17 | 0 |
| 18 | 24 |
| 19 | 0 |
| 20 | 24 |
| 21 | 0 |
| 22 | -24 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | -24 |
| 27 | 60 |
| 28 | 36 |
| 29 | 0 |
| 30 | 48 |
| 31 | 0 |
| 32 | 42 |
| 33 | -20 |
| 34 | -42 |
| 35 | 0 |
| 36 | -12 |
| 37 | 0 |
| 38 | -42 |
| 39 | -10 |
| 40 | 12 |
| 41 | 0 |
| 42 | 72 |
| 43 | 0 |
| 44 | 60 |
| 45 | 60 |
| 46 | -48 |
| 47 | 0 |
| 48 | -24 |
| 49 | 0 |
| 50 | 42 |
| 51 | -30 |
| 52 | 72 |
| 53 | 0 |
| 54 | -84 |
| 55 | 0 |
| 56 | 12 |
| 57 | -30 |
| 58 | -78 |
| 59 | 0 |
| 60 | -120 |
| 61 | 0 |
| 62 | -72 |
| 63 | 120 |
| 64 | 126 |
| 65 | 0 |
| 66 | 180 |
| 67 | 0 |
| 68 | 96 |
| 69 | -30 |
| 70 | 132 |
| 71 | 0 |
| 72 | -48 |
| 73 | 0 |
| 74 | -96 |
| 75 | 60 |
| 76 | 108 |
| 77 | 0 |
| 78 | 174 |
| 79 | 0 |
| 80 | -84 |
| 81 | 120 |
[1,0,0,0,0,0,0,6,0,-6,0,12,0,-6,0,18,0,24,0,24,0, -24,0,0,0,-24,60,36,0,48,0,42,-20,-42,0,-12,0,-42, -10,12,0,72,0,60,60,-48,0,-24,0,42,-30,72,0,-84,0, 12,-30,-78,0,-120,0,-72,120,126,0,180,0,96,-30, 132,0,-48,0,-96,60,108,0,174,0,-84,120] |