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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 4 |
| 7 | 6 |
| 8 | 11 |
| 9 | 17 |
| 10 | 34 |
| 11 | 59 |
| 12 | 118 |
| 13 | 213 |
| 14 | 424 |
| 15 | 799 |
| 16 | 1606 |
| 17 | 3072 |
| 18 | 6216 |
| 19 | 12172 |
| 20 | 24650 |
| 21 | 48710 |
| 22 | 99333 |
| 23 | 198237 |
| 24 | 405526 |
| 25 | 815267 |
| 26 | 1673127 |
| 27 | 3387165 |
| 28 | 6974702 |
| 29 | 14179418 |
| 30 | 29285048 |
| 31 | 59841630 |
| 32 | 123848399 |
| 33 | 253927322 |
| 34 | 526936694 |
| 35 | 1084022437 |
| 36 | 2253778793 |
| 37 | 4649778115 |
[1,1,1,1,2,2,4,6,11,17,34,59,118,213,424,799,1606, 3072,6216,12172,24650,48710,99333,198237,405526, 815267,1673127,3387165,6974702,14179418,29285048, 59841630,123848399,253927322,526936694,1084022437, 2253778793,4649778115] |