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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 0 |
| 6 | 0 |
| 7 | 1 |
| 8 | 1 |
| 9 | -1 |
| 10 | -1 |
| 11 | 1 |
| 12 | 2 |
| 13 | -1 |
| 14 | -1 |
| 15 | 1 |
| 16 | 2 |
| 17 | -2 |
| 18 | -1 |
| 19 | 2 |
| 20 | 3 |
| 21 | -3 |
| 22 | -2 |
| 23 | 3 |
| 24 | 4 |
| 25 | -3 |
| 26 | -2 |
| 27 | 4 |
| 28 | 5 |
| 29 | -4 |
| 30 | -4 |
| 31 | 5 |
| 32 | 6 |
| 33 | -6 |
| 34 | -5 |
| 35 | 6 |
| 36 | 8 |
| 37 | -7 |
| 38 | -6 |
| 39 | 8 |
| 40 | 11 |
| 41 | -10 |
| 42 | -8 |
| 43 | 11 |
| 44 | 13 |
| 45 | -11 |
| 46 | -10 |
| 47 | 13 |
| 48 | 16 |
| 49 | -15 |
| 50 | -14 |
| 51 | 17 |
| 52 | 20 |
| 53 | -18 |
| 54 | -17 |
| 55 | 20 |
| 56 | 24 |
| 57 | -23 |
| 58 | -21 |
| 59 | 25 |
| 60 | 31 |
| 61 | -29 |
| 62 | -26 |
| 63 | 32 |
| 64 | 37 |
| 65 | -34 |
| 66 | -32 |
| 67 | 39 |
| 68 | 44 |
| 69 | -42 |
| 70 | -41 |
| 71 | 47 |
| 72 | 54 |
| 73 | -52 |
| 74 | -49 |
| 75 | 56 |
| 76 | 64 |
| 77 | -62 |
| 78 | -59 |
| 79 | 68 |
| 80 | 79 |
| 81 | -77 |
| 82 | -72 |
[1,-1,0,1,1,0,0,1,1,-1,-1,1,2,-1,-1,1,2,-2,-1,2,3, -3,-2,3,4,-3,-2,4,5,-4,-4,5,6,-6,-5,6,8,-7,-6,8, 11,-10,-8,11,13,-11,-10,13,16,-15,-14,17,20,-18, -17,20,24,-23,-21,25,31,-29,-26,32,37,-34,-32,39, 44,-42,-41,47,54,-52,-49,56,64,-62,-59,68,79,-77, -72] |