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