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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 8 |
| 6 | 13 |
| 7 | 30 |
| 8 | 52 |
| 9 | 112 |
| 10 | 217 |
| 11 | 446 |
| 12 | 864 |
| 13 | 1750 |
| 14 | 3469 |
| 15 | 6976 |
| 16 | 13892 |
| 17 | 27828 |
| 18 | 55550 |
| 19 | 111158 |
| 20 | 222224 |
| 21 | 444458 |
| 22 | 888747 |
| 23 | 1777546 |
| 24 | 3554844 |
| 25 | 7109666 |
| 26 | 14218740 |
| 27 | 28437336 |
| 28 | 56874024 |
| 29 | 113747200 |
| 30 | 227493165 |
| 31 | 454985872 |
| 32 | 909968764 |
| 33 | 1819934952 |
| 34 | 3639866058 |
| 35 | 7279725522 |
| 36 | 14559441844 |
[1,1,1,2,3,8,13,30,52,112,217,446,864,1750,3469, 6976,13892,27828,55550,111158,222224,444458, 888747,1777546,3554844,7109666,14218740,28437336, 56874024,113747200,227493165,454985872,909968764, 1819934952,3639866058,7279725522,14559441844] |