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