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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 2 |
| 3 | -4 |
| 4 | 6 |
| 5 | -9 |
| 6 | 14 |
| 7 | -20 |
| 8 | 29 |
| 9 | -42 |
| 10 | 58 |
| 11 | -80 |
| 12 | 110 |
| 13 | -148 |
| 14 | 198 |
| 15 | -264 |
| 16 | 347 |
| 17 | -454 |
| 18 | 592 |
| 19 | -764 |
| 20 | 982 |
| 21 | -1257 |
| 22 | 1598 |
| 23 | -2024 |
| 24 | 2554 |
| 25 | -3206 |
| 26 | 4010 |
| 27 | -5000 |
| 28 | 6208 |
| 29 | -7684 |
| 30 | 9484 |
| 31 | -11664 |
| 32 | 14306 |
| 33 | -17501 |
| 34 | 21346 |
| 35 | -25972 |
| 36 | 31526 |
| 37 | -38170 |
| 38 | 46112 |
| 39 | -55588 |
| 40 | 66861 |
| 41 | -80258 |
| 42 | 96154 |
| 43 | -114968 |
| 44 | 137212 |
[1,-1,2,-4,6,-9,14,-20,29,-42,58,-80,110,-148,198, -264,347,-454,592,-764,982,-1257,1598,-2024,2554, -3206,4010,-5000,6208,-7684,9484,-11664,14306, -17501,21346,-25972,31526,-38170,46112,-55588, 66861,-80258,96154,-114968,137212] |