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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 5 |
| 7 | 9 |
| 8 | 17 |
| 9 | 31 |
| 10 | 60 |
| 11 | 113 |
| 12 | 220 |
| 13 | 419 |
| 14 | 813 |
| 15 | 1565 |
| 16 | 3033 |
| 17 | 5855 |
| 18 | 11358 |
| 19 | 21977 |
| 20 | 42644 |
| 21 | 82675 |
| 22 | 160517 |
| 23 | 311609 |
| 24 | 605551 |
| 25 | 1176871 |
| 26 | 2288964 |
| 27 | 4453237 |
| 28 | 8669002 |
| 29 | 16881859 |
| 30 | 32892459 |
| 31 | 64112225 |
| 32 | 125022545 |
| 33 | 243898335 |
| 34 | 476011102 |
| 35 | 929387453 |
| 36 | 1815322932 |
[0,0,1,2,3,5,9,17,31,60,113,220,419,813,1565,3033, 5855,11358,21977,42644,82675,160517,311609,605551, 1176871,2288964,4453237,8669002,16881859,32892459, 64112225,125022545,243898335,476011102,929387453, 1815322932] |