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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -1 |
| 3 | -1 |
| 4 | 2 |
| 5 | 0 |
| 6 | -1 |
| 7 | 0 |
| 8 | -1 |
| 9 | 2 |
| 10 | 2 |
| 11 | -6 |
| 12 | 3 |
| 13 | 3 |
| 14 | -8 |
| 15 | 11 |
| 16 | -4 |
| 17 | -16 |
| 18 | 30 |
| 19 | -15 |
| 20 | -24 |
| 21 | 58 |
| 22 | -55 |
| 23 | -7 |
| 24 | 108 |
| 25 | -158 |
| 26 | 58 |
| 27 | 173 |
| 28 | -357 |
| 29 | 268 |
| 30 | 170 |
| 31 | -713 |
| 32 | 831 |
| 33 | -98 |
| 34 | -1235 |
| 35 | 2070 |
| 36 | -1154 |
| 37 | -1641 |
| 38 | 4463 |
| 39 | -4207 |
| 40 | -894 |
| 41 | 8392 |
| 42 | -11527 |
| 43 | 3917 |
| 44 | 13077 |
| 45 | -26782 |
| 46 | 19818 |
| 47 | 13765 |
| 48 | -54309 |
| 49 | 61370 |
| 50 | -4901 |
[1,1,-1,-1,2,0,-1,0,-1,2,2,-6,3,3,-8,11,-4,-16,30, -15,-24,58,-55,-7,108,-158,58,173,-357,268,170, -713,831,-98,-1235,2070,-1154,-1641,4463,-4207, -894,8392,-11527,3917,13077,-26782,19818,13765, -54309,61370,-4901] |