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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -2 |
| 2 | 4 |
| 3 | -4 |
| 4 | 6 |
| 5 | -8 |
| 6 | 10 |
| 7 | -9 |
| 8 | 11 |
| 9 | -14 |
| 10 | 16 |
| 11 | -14 |
| 12 | 16 |
| 13 | -20 |
| 14 | 22 |
| 15 | -19 |
| 16 | 21 |
| 17 | -26 |
| 18 | 28 |
| 19 | -24 |
| 20 | 26 |
| 21 | -32 |
| 22 | 34 |
| 23 | -29 |
| 24 | 31 |
| 25 | -38 |
| 26 | 40 |
| 27 | -34 |
| 28 | 36 |
| 29 | -44 |
| 30 | 46 |
| 31 | -39 |
| 32 | 41 |
| 33 | -50 |
| 34 | 52 |
| 35 | -44 |
| 36 | 46 |
| 37 | -56 |
| 38 | 58 |
| 39 | -49 |
| 40 | 51 |
| 41 | -62 |
| 42 | 64 |
| 43 | -54 |
| 44 | 56 |
| 45 | -68 |
| 46 | 70 |
| 47 | -59 |
| 48 | 61 |
| 49 | -74 |
| 50 | 76 |
| 51 | -64 |
| 52 | 66 |
| 53 | -80 |
| 54 | 82 |
| 55 | -69 |
| 56 | 71 |
| 57 | -86 |
| 58 | 88 |
| 59 | -74 |
| 60 | 76 |
| 61 | -92 |
| 62 | 94 |
| 63 | -79 |
| 64 | 81 |
| 65 | -98 |
| 66 | 100 |
| 67 | -84 |
[1,-2,4,-4,6,-8,10,-9,11,-14,16,-14,16,-20,22,-19, 21,-26,28,-24,26,-32,34,-29,31,-38,40,-34,36,-44, 46,-39,41,-50,52,-44,46,-56,58,-49,51,-62,64,-54, 56,-68,70,-59,61,-74,76,-64,66,-80,82,-69,71,-86, 88,-74,76,-92,94,-79,81,-98,100,-84] |