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