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