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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | -1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 5 |
| 7 | 5 |
| 8 | 9 |
| 9 | 11 |
| 10 | 21 |
| 11 | 33 |
| 12 | 57 |
| 13 | 89 |
| 14 | 145 |
| 15 | 231 |
| 16 | 377 |
| 17 | 609 |
| 18 | 989 |
| 19 | 1597 |
| 20 | 2585 |
| 21 | 4179 |
| 22 | 6765 |
| 23 | 10945 |
| 24 | 17713 |
| 25 | 28657 |
| 26 | 46369 |
| 27 | 75023 |
| 28 | 121393 |
| 29 | 196417 |
| 30 | 317813 |
| 31 | 514229 |
| 32 | 832041 |
| 33 | 1346267 |
| 34 | 2178309 |
| 35 | 3524577 |
| 36 | 5702889 |
| 37 | 9227465 |
| 38 | 14930353 |
| 39 | 24157815 |
[1,1,1,-1,1,1,5,5,9,11,21,33,57,89,145,231,377, 609,989,1597,2585,4179,6765,10945,17713,28657, 46369,75023,121393,196417,317813,514229,832041, 1346267,2178309,3524577,5702889,9227465,14930353, 24157815] |