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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | -2 |
| 4 | 0 |
| 5 | 2 |
| 6 | 1 |
| 7 | -1 |
| 8 | 1 |
| 9 | 4 |
| 10 | 4 |
| 11 | 4 |
| 12 | 9 |
| 13 | 17 |
| 14 | 25 |
| 15 | 38 |
| 16 | 64 |
| 17 | 106 |
| 18 | 169 |
| 19 | 271 |
| 20 | 441 |
| 21 | 716 |
| 22 | 1156 |
| 23 | 1868 |
| 24 | 3025 |
| 25 | 4897 |
| 26 | 7921 |
| 27 | 12814 |
| 28 | 20736 |
| 29 | 33554 |
| 30 | 54289 |
| 31 | 87839 |
| 32 | 142129 |
| 33 | 229972 |
| 34 | 372100 |
| 35 | 602068 |
| 36 | 974169 |
| 37 | 1576241 |
| 38 | 2550409 |
| 39 | 4126646 |
| 40 | 6677056 |
| 41 | 10803706 |
| 42 | 17480761 |
| 43 | 28284463 |
[1,1,1,-2,0,2,1,-1,1,4,4,4,9,17,25,38,64,106,169, 271,441,716,1156,1868,3025,4897,7921,12814,20736, 33554,54289,87839,142129,229972,372100,602068, 974169,1576241,2550409,4126646,6677056,10803706, 17480761,28284463] |